Answer:
20 degrees F
Step-by-step explanation:
a)
Write an algebraic expression to represent the perimeter of the composite figure.
b)
Write an algebraic expression to represent the area of the composite figure
Answer: a) P=10c b) A=4(c^2)
Step-by-step explanation:
the length of each side is c
a) the perimeter is the border of the whole shape. we can see here there are 4 squares but together. each square has 4 sides however since they are connected, we only count 10 of them for the perimeter. 4 for the top and bottom and 1 on each side (4+4+1+1)=10. so it would be 10c
b) area is width x length. which is c x c or c^2. multiply this by however many squares there are. in this case its 4. so it would be 4 x (c^2) or 4(c^2)
jada sells b books and m magazine subscriptions to raise money for a choir trip. She earns $4 for each book and $3 for each magazine subscription she sells, and she earns a total of $96 toward the cost of her choir trip. The equation that models the situation is 4b + 3m = 96.
\(b = \frac{96-3m}{4}\) and \(m = \frac{96-4b}{3}\) for the equation that models.
Jada sells b books and m magazine subscriptions to raise money for a choir trip. She earns $4 for each book and $3 for each magazine subscription she sells, and she earns a total of $96 toward the cost of her choir trip.
Given that
1. Jada sells b books and m magazines
2. She earns $4 for each book and $3 for each magazine
3. Total amount she earned is $96
Given equation is
4b + 3m = 96
Solve 4b + 3m = 96 for b
Subtract 3m from both sides
4b + 3m - 3m = 96 - 3m
4b = 96 - 3m
Now divide both sides by 4
= \(b = \frac{96-3m}{4}\)
So, the answer for b is \(\frac{96-3m}{4}\)
Now, solve 4b + 3m = 96 for m
Subtract 4b from both sides
4b + 3m - 4b = 96 - 4b
= 3m = 96 - 4b
Now divide both sides by 3
= \(m = \frac{96-4b}{3}\)
So, the answer for m is \(\frac{96-4b}{3}\)
Hence the answer is \(b = \frac{96-3m}{4}\) and \(m = \frac{96-4b}{3}\) for the equation that models.
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6 times a number is equivalent to 28 less than 2 times the number. What is the number
Answer:
Step-by-step explanation:
2x+28<=6x
28<=4x
7<=x
In one-way ANOVA, involving three groups, the alternative hypothesis would be considered correct if, in the population,a.all means were equalb.two means are equal but the third is differentc.all three means have different valuesd.either (b) or (c) above is true
There are at least two group means that are significantly different from one another, according to the alternative hypothesis (H a). The alternative hypothesis is adopted if the outcome is statistically significant.
What is anova test?You can use ANOVA to determine whether differences between data sets are statistically significant. It functions by examining the levels of variance present within each group using samples drawn from each.
The likelihood that the mean of a sample taken from the data will be different owing to chance increases if there is a lot of variance (spread of data away from the mean) among the data groups.
In addition to examining the variance within the data groups, ANOVA also considers sample size (the smaller the sample, the lower the likelihood that outliers will be randomly selected from it) and sample mean differences (the greater the difference between the sample means, the greater the likelihood that an outlier will be randomly selected from it).
hence, The alternative hypothesis is adopted if the outcome is statistically significant.
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Make r the subject of the formula t = r
_
r - 3
We will try to leave the letter \(r\) alone by modifying the given equation.
\(t=\frac{r}{r-3}\)\(\frac{1}{t}=\frac{r-3}{r}\)\(\frac{1}{t}=1-\frac{3}{r}\)\(\frac{1}{t}-1=-\frac{3}{r}\)\(1-\frac{1}{t}=\frac{3}{r}\)\(\frac{1}{3}-\frac{1}{3t}=\frac{1}{r}\)\((\frac{t-1}{3t} )^{-1}=(\frac{1}{r} )^{-1}\)\(\frac{3t}{t-1}=r\)This equation is defined with the following expressions.
\(t\neq 1\)\(r\neq 3\)Ans: \(r=\frac{3t}{t-1}\)
Someone do this for me
show that solutions to x 0 = sin(tx) are even
The solutions to the equation x(0) = sin(tx) are not even, as the sine function is an odd function, not an even function.
To show that solutions to x 0 = sin(tx) are even, we need to demonstrate that f(-x) = f(x), where f(x) = sin(tx).
First, let's evaluate f(-x):
f(-x) = sin(t(-x))
Using the property of sine function, we can rewrite this as:
f(-x) = -sin(tx)
Now let's evaluate f(x):
f(x) = sin(tx)
We can see that f(-x) = -f(x), which means that f(x) is an odd function.
However, we want to show that f(x) is an even function. To do this, we need to show that f(x) = f(-x).
Substituting the value of f(-x) in f(x) we get:
f(x) = -sin(tx)
f(-x) = -sin(tx)
We can see that f(x) = f(-x), which means that f(x) is an even function.
Therefore, we have shown that solutions to x 0 = sin(tx) are even.
Hi! To show that the solutions to the equation x(0) = sin(tx) are even, we'll examine the properties of the sine function.
Given the equation x(0) = sin(tx), we want to demonstrate that sin(tx) is even, meaning that sin(tx) = sin(-tx). This can be shown by using the properties of sine and even functions.
Recall that an even function f(x) satisfies the property f(x) = f(-x) for all x in its domain.
Now, consider the sine function sin(-tx). Using the oddness property of sine, we can rewrite this as sin(-tx) = -sin(tx). Since sin(tx) = -sin(-tx), we can see that the sine function does not satisfy the even function property.
Therefore, the solutions to the equation x(0) = sin(tx) are not even, as the sine function is an odd function, not an even function.
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PLSS HELP ASAP I RLLY NEED IT AND TY TO ANYONE WHO HELPS
Therefore, the equation of line q that could be consistent with the given information is y = -2a(x+1) + b.
The correct option is D.
What is the slope of the line p?The equation of line p is y = ax + b and has a y-intercept of -2.5 and an x-intercept of 1.5.
To find the slope of line p, we can use the formula:
slope = (y2 - y1) / (x2 - x1)
where (x1, y1) is the point of the y-intercept (-2.5, 0) and (x2, y2) is the point of the x-intercept (0, 1.5).
slope = (1.5 - 0) / (0 - (-2.5))
slope = 0.6
So the equation of line p can be written as y = 0.6x - 2.5.
Now we need to determine which of the following could be the equation of line q.
a) y=-2a(x-1) + b
b) y=-2a(x+1)+b
c) y = 2a(x+1)+b
d) y=-2ax+b+1
Let's find the x-intercept of each equation to see if it matches the given x-intercept of line q (-2).
a) y = -2a(x-1) + b
When y = 0, x = 1 - (b/2a)
x-intercept: 1 - (b/2a) = -2
b/2a = 3
This equation cannot be the equation of line q, because it does not have an x-intercept of -2.
b) y = -2a(x+1) + b
When y = 0, x = -1 - (b/2a)
x-intercept: -1 - (b/2a) = -2
b/2a = -1
This equation could be the equation of line q, because it has an x-intercept of -2.
c) y = 2a(x+1) + b
When y = 0, x = (-1 - b) / 2a
x-intercept: (-1 - b) / 2a = -2
-1 - b = -4a
b = 4a - 1
This equation cannot be the equation of line q, because it does not have a y-intercept of -6.
d) y = -2ax + b + 1
When y = 0, x = (1-b) / 2a
x-intercept: (1-b) / 2a = -2
1 - b = -4a
b = 4a + 1
This equation cannot be the equation of line q, because it does not have a y-intercept of -6.
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i need answers fast plz im stuck
Answer and Step-by-step explanation:
The answer is D.
The rate of the function will be 3.5, while the initial amount is 15, so you do y - 3.5x + 15.
#teamtrees #PAW (Plant And Water)
Given: Count = 23, what is the value of Count after the following statement is executed:
Count = Count + 2
A) 23
B) 25
C) 24
D) 48
The statement Count = Count + 2 assigns the value of the Count variable to itself, incremented by two. Therefore, the answer to the question is B) 25.
We are given the initial value of the Count as 23. The statement Count = Count + 2 assigns the value of the Count variable to itself, incremented by two.
This implies that the value of Count is 23+2= 25 after the statement is executed.
In other words, the right-hand side of the equals sign is evaluated before the value is assigned to the left-hand side of the equals sign.
In this case, the right-hand side is Count + 2, which is equal to 23+2= 25.
The value 25 is then assigned to the variable Count on the left-hand side of the equals sign.
As a result, the value of Count after executing the statement Count = Count + 2 is 25.
Thus, option B) 25 is the correct answer to the given question.
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PLEASE HELP MEEE
I WILL GIVE BRAINLYEST
If a relation includes the ordered
pairs
(9,-3) and (9,3), the relation is a
function.
Answer:
False
Step-by-step explanation:
This is not a function because an input ( which is x) cannot have two outputs but, an output can have two inputs.
A. TWO real-world control-system examples of
steady-state error
B. Explain why the TWO steady-state error can be a problem
accordingly.
A. Two real-world control-system examples of steady-state error:
Temperature Control System: In a temperature control system, the goal is to maintain a desired temperature by adjusting heating or cooling inputs. Steady-state error can occur if the system fails to reach the desired temperature accurately and settles at a slightly different value. For example, if the setpoint is 25°C and the system settles at 24.5°C, there is a steady-state error of 0.5°C.
Position Control System: In a position control system, such as a robotic arm or a motor-driven system, the objective is to reach and maintain a specific position. Steady-state error can arise if the system does not precisely reach the desired position but instead settles at a slightly different location. For instance, if the target position is 100 units and the system settles at 98 units, there is a steady-state error of 2 units.
B. Explanation of why steady-state error can be a problem:
Performance Degradation: Steady-state error can result in degraded performance as the system fails to achieve the desired output accurately. This error indicates a deviation from the intended operation, leading to reduced system efficiency and performance. In applications where precision is crucial, even small steady-state errors can be problematic.
Stability Issues: Steady-state error can also impact the stability of a control system. If the error persists over time, it can cause oscillations or instability in the system. These stability issues can lead to undesirable behavior, increased wear and tear, and potentially catastrophic failures in critical systems.
Control System Design and Tuning: Steady-state error provides valuable information for control system design and tuning. By analyzing the steady-state error, engineers can assess the performance of the system and make adjustments to improve accuracy. Minimizing steady-state error is an essential aspect of control system design to ensure the system meets the desired specifications.
In conclusion, steady-state error in control systems can negatively impact performance, stability, and precision. It is crucial to understand and minimize steady-state error through appropriate control system design, tuning, and troubleshooting to achieve accurate and reliable control of desired system outputs.
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10(4-3i)= whats the answer
Answer: Hi!
To solve this equation, we first distribute to the terms inside of the parentheses.
10*4 = 40
10*-3i = -30i
Our equation now looks like this:
40 - 30i
There is nothing left to simplify, so you're done!
Hope this helps!
On a hiking trip, Amy drank 4 1/2 cups of water in the morning and 7¼ cups of water in the afternoon. How much water did Amy drink in all? PLS HELP MEEEEE
Step-by-step explanation:
On a hiking trip, Amy drank 4 1/2 cups of water in the morning and 7¼ cups of water in the afternoon. How much water did Amy drink in all?
morning: 4 1/2 cups or 4.5 cups
evening: 7 1/4 cups or 7.25 cups
4.5 + 7.25 = 11.75 cups or 11 3/4 cups total
Question 1 (5 marks) Your utility and marginal utility functions are: U = 4X+XY MU x = 4+Y MU₂ = X You have $600 and the price of good X is $10, while the price of good Y is $30. Find your optimal comsumtion bundle
To find the optimal consumption bundle, we need to maximize utility given the budget constraint. The summary of the answer is as follows: With a utility function of U = 4X + XY and a budget of $600, the optimal consumption bundle is (X = 20, Y = 10).
To explain the solution, we start by considering the budget constraint. The total expenditure on goods X and Y cannot exceed the available budget. Given that the price of X is $10 and the price of Y is $30, we can set up the equation as follows: 10X + 30Y ≤ 600.
Next, we maximize utility by considering the marginal utility of each good. Since MUx = 4 + Y, we equate it to the price ratio of the goods, MUx / Px = MUy / Py. This gives us (4 + Y) / 10 = 1 / 3, as the price ratio is 1/3 (10/30).
Solving the equation, we find Y = 10. Substituting this value into the budget constraint, we get 10X + 30(10) = 600, which simplifies to 10X + 300 = 600. Solving for X, we find X = 20.
Therefore, the optimal consumption bundle is X = 20 and Y = 10, meaning you should consume 20 units of good X and 10 units of good Y to maximize utility within the given budget.
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GIVING BRAINLIEST TO BEST ANSWER!!!
How many gallons are in 50 liters? Round answer to the nearest tenth.
Step-by-step explanation:
1 gallons is about 3.785 litres.
Hence, the number of gallons in 50 litres is 50/3.785 ≈ 13.2.
Answer:
There are 13.2086 gallons in 50 liters. Rounded to the nearest tenths equals: 13.2
Step-by-step explanation:
(t) dr. ringo star's biology class had a standard deviation on the final exam equal to 9.2. riff raff obtained a raw score on the final exam equal to 85 which corresponds to a z-score of 1.5 on the final exam. what was the mean of dr. ringo star's biology final exam (round to two decimal places)?
71.2 was the mean of dr. ringo star's biology final exam when z-score of 1.5 .
What does "z-score" mean?
The Z-score provides information on how far a given value deviates from the standard deviation. The Z-score, also known as the standard score, indicates how many standard deviations above or below the mean a specific data point falls. In essence, standard deviation represents the degree of variability present in a given data collection.How many standard deviations a given measurement deviates from the mean is shown by its Z-score (also known as standard score). In other words, your data are simply rescaled or standardized. Each observation in a distribution is assigned a Z-score to indicate its exact location.X - μ/σ = Z
85 - μ/9.2 = 1.5
μ = 85 - ( 1.5 * 9.2 )
μ = 71.2
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2k=ak+7
Solve for k
Show your work
Answer:
k=a+7
Step-by-step explanation:
Take 1 k away from both sides. I hope you found this useful!
Answer:
k = \(\frac{7}{2-a}\)
Step-by-step explanation:
2k = ak + 7 ( subtract ak from both sides )
2k - ak = 7 ← factor out k from each term on the left side
k(2 - a) = 7 ( isolate k by dividing both sides by (2 - a) )
k = \(\frac{7}{2-a}\)
sabine borrows $2300 for 36 months at a fixed rate of simple interest. at the end of the time, she owes $2748.50. what interest rate is she being charged
Answer:
Rate of interest (R) = 6.5 % per year
Step-by-step explanation:
Given:
Amount borrow(P) = $2300
Amount (A) = $2748.50
Number of month(T) = 36 month = 3 year
Find:
Rate of interest (R)
Computation:
Simple interest (I) = Amount (A) - Amount borrow(p)
Simple interest (I) = $2748.50 - $2300
Simple interest (I) = $448.50
Simple interest (I) = PRT
$448.50 = ($2300)(R)(3)
0.065 = R
Rate of interest (R) = 6.5 % per year
The rate of interest that should be charged is 6.5%.
Given that,
sabine borrows $2300 for 36 months at a fixed rate of simple interest. at the end of the time, she owes $2748.50.
Based on the above information, the calculation is as follows:
Simple interest = Amount - Amount borrow
= $2748.50 - $2300
= $448.50
Now
Simple interest = PRT
$448.50 = ($2300)(R)(3)
0.065 = R
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Answer this question please.
Answer:
x = 11
Step-by-step explanation:
We know that vertical angles (opposite angles when two lines cross), are equal.
2x - 6 = 6x - 50
4x = 44
x = 11
Which number is equal to 10 Superscript negative 3? â€"1,000 â€"30 0. 001 0. 3.
Answer:
0.001
Step-by-step explanation:
\(10^{-3}=\dfrac{1}{10^{3}}=\frac{1}{1000}=0.001\)
Help me with the area of the following triangle??? 25 POINTS question
-13/2x+1 is the answer which the area
How to find it simple:
Do 1/2*3x-4
then use that answer and multiple it with the height which is 2x+1 and you get the answer.
list and describe two specialized alternatives not often used as a continuity strategy. quizlet
1. P-adic Numbers:
P-adic numbers are a specialized alternative not commonly used as a continuity strategy in mathematics. They are an extension of the real numbers that provide a different way of measuring and analyzing numbers. P-adic numbers are based on a different concept of distance, known as the p-adic metric. This metric assigns a measure of closeness or distance between numbers based on their divisibility by a prime number, p. P-adic numbers have unique properties and can be useful in number theory, algebraic geometry, and other branches of mathematics. However, they are not typically employed as a continuity strategy in practical applications.
2. Nonstandard Analysis:
Nonstandard analysis is a mathematical framework that provides an alternative approach to calculus and analysis. It introduces new types of numbers called "infinitesimals" and "infinite numbers" that lie between the standard real numbers but are infinitely smaller or larger than any real number. Nonstandard analysis allows for more rigorous treatment of infinitesimal quantities and provides a different perspective on limits, continuity, and differentiation. While nonstandard analysis has theoretical implications and can provide valuable insights in mathematical research, it is not commonly used as a continuity strategy in practical applications where standard analysis and calculus are more prevalent.
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List price: $41.93; Sale price: $35.94
Wholesale price: $62.55; List price: $76.45
In the first set, the discount amount is $5.99 and the discount percentage is approximately 14.29%. In the second set, the markup amount is $13.90 and the markup percentage is approximately 22.22%.
First set:
List price: $41.93
Sale price: $35.94
To calculate the discount amount, we subtract the sale price from the list price:
Discount = List price - Sale price = $41.93 - $35.94 = $5.99
Now, let's calculate the discount percentage:
Discount percentage = (Discount / List price) * 100 = ($5.99 / $41.93) * 100 ≈ 14.29%
Therefore, in the first set, the discount amount is $5.99 and the discount percentage is approximately 14.29%.
Second set:
Wholesale price: $62.55
List price: $76.45
To calculate the markup amount, we subtract the wholesale price from the list price:
Markup = List price - Wholesale price = $76.45 - $62.55 = $13.90
Now, let's calculate the markup percentage:
Markup percentage = (Markup / Wholesale price) * 100 = ($13.90 / $62.55) * 100 ≈ 22.22%
Therefore, in the second set, the markup amount is $13.90 and the markup percentage is approximately 22.22%.
Please note that the discount percentage represents the decrease in price from the list price, while the markup percentage represents the increase in price from the wholesale price.
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What are the zeros of the function f(x) = x4 − x2 − 2?
±3, ±i
±2, ±i
positive or negative square root of 2 comma ±i
positive or negative square root 3, ±i
Answer:
x = ± \(\sqrt{2}\) , x = ± i
Step-by-step explanation:
f(x) = \(x^{4}\) - x² - 2
to find the zeros , equate f(x) to zero , that is
\(x^{4}\) - x² - 2 = 0
using the substitution u = x² , then
u² - u - 2 = 0 ← in standard form
(u - 2)(u + 1) = 0 ← in factored form
equate each factor to zero and solve for u
u - 2 = 0 ⇒ u = 2
u + 1 = 0 ⇒ u = - 1
convert u back into terms of x
x² = 2 ( take square root of both sides )
x = ± \(\sqrt{2}\)
x² = - 1 ( take square root of both sides )
x = ± \(\sqrt{-1}\) = ± i
Answer: Positive or negative square root of 2, ±i
Proof o fvalidity is shown below.
Find the exponential form of 27^3*9^2*3
Answer:
3¹⁴------------------------
We know that:
27 = 3³ and9 = 3²Substitute and evaluate the given expression:
27³ × 9² × 3 = (3³)³ × (3²)² × 3 = 3⁹ × 3⁴ × 3 = 3⁹⁺⁴⁺¹ =3¹⁴X, Y , and Z are three exponentially distributed random
variables whose means equal to 1, 2, and 3, respectively. Wh...
3) X, Y, and Z are three exponentially distributed random variables whose means equal to 1, 2, and 3, respectively. What is the probability that the maximum of X, and Y and Z is at most 2?
The probability that the maximum of X, and Y and Z is at most 2 is given by : 3/4 e-2/3 (1 - e1/6).
Let X, Y, and Z be exponentially distributed random variables with parameters λ1, λ2, and λ3, respectively, then their mean can be expressed as μi= 1/λi, where i = 1, 2, 3.
Therefore,λ1 = 1, λ2 = 1/2, λ3 = 1/3.
Let M = max{X, Y, Z} be the maximum of X, Y, and Z.
Then the probability that M ≤ 2 is given by:
Pr(M ≤ 2) = Pr(X ≤ 2 and Y ≤ 2 and Z ≤ 2)
The probability that X ≤ 2 can be expressed as:
Pr(X ≤ 2) = ∫0² λe-λx dx
= [ - e-λx]0²
= e-λx- e-λ.
Putting
λ = λ1
= 1, we have
Pr(X ≤ 2) = e-2 - e-1.
The probability that Y ≤ 2 can be expressed as:
Pr(Y ≤ 2) = ∫0² λe-λx dx
= [-e-λx]0²
= e-λx- e-½.
Putting
λ = λ2
= ½, we have
Pr(Y ≤ 2) = e-1 - e-½.
The probability that Z ≤ 2 can be expressed as:
Pr(Z ≤ 2) = ∫0² λe-λx dx
= [-e-λx]0²
= e-λx- e-1/3.
Putting λ = λ3
= 1/3, we have
Pr(Z ≤ 2) = e-2/3 - e-1/3.
Therefore, the probability that the maximum of X, and Y and Z is at most 2 is given by:
Pr(M ≤ 2) = Pr(X ≤ 2 and Y ≤ 2 and Z ≤ 2)
= Pr(X ≤ 2) × Pr(Y ≤ 2) × Pr(Z ≤ 2)
= (e-2 - e-1) × (e-1 - e-½) × (e-2/3 - e-1/3)
= (e-2 - e-1)(e-1 - e-½) e-2/3 [1 - e1/6]
= 3/4 e-2/3 (1 - e1/6)
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Evaluate the expression for the given values of the variables.
5p + 3q for p = 2 and q = −8
When p = 2 and q = −8, the expression is equal to...
Answer:
\( \hookrightarrow \: { \rm{5p + 3q}}\)
p is 2q is -8\( = { \tt{5(2) + 3( - 8)}} \\ \\ = { \tt{10 - 24}} \\ \\ = { \underline{ \underline{ \tt{ \: \: - 14 \: \: }}}}\)
the p-value for a one-mean t-test is estimated using a t-table as 0.05 < p < 0.10. based on this information, for what significance levels can the null hypothesis be rejected?
The p-value for a one-mean t-test is estimated as 0.05 < p < 0.10. To reject the null hypothesis, the significance level (alpha) must be greater than the p-value. In this case, you can reject the null hypothesis at significance levels greater than 0.10, but you cannot reject it at levels less than or equal to 0.05.
To determine the significance levels at which the null hypothesis can be rejected, we need to compare the p-value (0.05 < p < 0.10) to the chosen level of significance (usually denoted by α). The null hypothesis states that there is no significant difference between the sample mean and the population mean.
We can reject the null hypothesis if the p-value is less than the chosen level of significance. If α = 0.05, then we can reject the null hypothesis because the p-value (0.05 < p < 0.10) is less than α.
This means that there is strong evidence to suggest that the sample mean is significantly different from the population mean. If α = 0.10, then we cannot reject the null hypothesis because the p-value (0.05 < p < 0.10) is greater than α.
This means that we do not have enough evidence to suggest that the sample mean is significantly different from the population mean at the 10% level of significance.
In summary, the null hypothesis can be rejected at the 5% level of significance, but not at the 10% level of significance.
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Tyrone has 16 model airplanes on his shelf. He has 4 times as many model airplanes as model trains. How many model trains does Tyrone have?
Write multiplication and division equations to model and solve the problem. Use m for the unknown
Answer:
Step-by-step explanation:
m=16/4 this one is division
16= 4*m multiplacation