Let:
x = Balloons required for poodles
y = Balloons required for giraffes
so:
\(\begin{gathered} 5x+y=13_{\text{ }}(1) \\ 3x+4y=18_{\text{ }}(2) \end{gathered}\)Using elimination method:
\(\begin{gathered} 4(1)-(2) \\ 20x-3x+4y-4y=52-18 \\ 17x=34 \\ x=\frac{34}{17} \\ x=2 \end{gathered}\)Replace x into (1):
\(\begin{gathered} 5(2)+y=13 \\ 10+y=13 \\ y=13-10 \\ y=3 \end{gathered}\)Answer:
x = 2
y = 3
How would I solve this problem?
Answer:
48 servings.
Step-by-step explanation:
Givens
Meal Size: 3/4 pound = 0.75 pound
Total Purchase = 36 pounds
Formula
# servings = Total Purchase / meal Size
Solution
# servings = 36 pounds / 0.75 pounds
# servings = 48 servings
Value of 5.3x10 4.2x10 scientific notation
Cuatro amigos, Andrés, Diego, Jairo y Luis juegan billar y acuerdan que aquel que pierda deberá duplicar la cantidad de dinero de los otros tres. Juegan cuatro partidas y cada uno de ellos pierde una vez, Andrés la primera, Diego la segunda, Jairo la tercera y Luis la cuarta. En ese momento cada uno de ellos tiene $ 32.000 ¿Cuánto dinero tenía cada uno de ellos al iniciar la apuesta?
Answer:
creo que 150
Step-by-step explanation:
Which line , or solid , is the best line of best fit ? What evidence can you provide to prove this is the best line of best fit ?
Answer:
JOSHUA
Step-by-step explanation:
J
Asap: please can you help me with this question
Find the range of values for which
x2–5x + 6 < 0
Answer:
Step-by-step explanation:
x^2 - 5x + 6 = 0
(x - 2)(x - 3)
So the critical point are x = 2 and x = 3.
The graph of the function opens upwards and pass through the x axis at (2, 0) and (3, 0).
So the required range is the values of f(x) between when x = 2 and x = 3
that is 2 < x < 3.
Answer:
Step-by-step explanation:
1 Factor {x}^{2}-5x+6x
2
−5x+6.
(x-3)(x-2)<0
(x−3)(x−2)<0
2 Solve for xx.
x=3,2
x=3,2
3 From the values of xx above, we have these 3 intervals to test.
\begin{aligned}&x<2\\&2<x<3\\&x>3\end{aligned}
x<2
2<x<3
x>3
4 Pick a test point for each interval.
For the interval x<2x<2:
Let's pick x=0x=0. Then, {0}^{2}-5\times 0+6<00
2
−5×0+6<0.
After simplifying, we get 6<06<0, which is false.
Drop this interval..
For the interval 2<x<32<x<3:
Let's pick x=\frac{5}{2}x=
25
. Then, {(\frac{5}{2})}^{2}-5\times \frac{5}{2}+6<0( 25) 2−5× 25+6<0.
After simplifying, we get -0.25<0−0.25<0, which is true.
Keep this interval..
For the interval x>3x>3:
Let's pick x=4x=4. Then, {4}^{2}-5\times 4+6<04 2 −5×4+6<0.
After simplifying, we get 2<02<0, which is false.
Drop this interval..
5 Therefore,
2<x<3
2<x<3
Students in jakes class were numbered in order from 1 to 24 jake was asked to choose classmates numbered with multiples of 5 to be in his group which number could be the number of a classmate in his group
Answer:
the possible classmates numbered with multiples of 5 that Jake can choose are 5,10,15,20.
Step-by-step explanation:
Multiples of 5 are numbers that are obtained by multiplying 5 by any whole number. So, to find the classmates numbered with multiples of 5, we can start by multiplying 5 by 1, then by 2, 3, and so on. The first few multiples of 5 are 5, 10, 15, 20, 25 and so on. Since the students are numbered from 1 to 24, only students whose numbers are less than or equal to 24 can be chosen.
So the possible classmates numbered with multiples of 5 that Jake can choose are 5,10,15,20.
The quantity x plus 3, multiplied by negative 7
Step-by-step explanation:
(x + 3) × -7 = -7x - 7×3 = -7x - 21
The system of equations 2y = 14 - 2x and y=-x+ 7 is
graphed. What is the solution to the system of equations?
yt
14
13
12
(0,-7)
11
10
9
(0,0)
8
7
6
2y = 14 - 2x
y = -x + 7
infinitely many
solutions
5
4
3
2.
1
no solution
0
0 1 2 3 4 5 6 7 8 9 10 11 12 x
Answer:
Infinitely many solutionsStep-by-step explanation:
Given system:
2y = 14 - 2x y = -x + 7Divide the first equation by 2 and rearrange:
2y/2 = 14/2 - 2x/2y = 7 - xy = -x + 7We got the same equation with the second one. It means we have two of the same lines overlapping.
This gives us infinitely many solutions.
Identify the terms in the expression. Separate your terms with a comma. −5x−3x+4+9x
Answer:
-5x,-3x,4,9x
Step-by-step explanation:
A term is separated my operational numbers (+, -). Terms can be constants, variables, and coefficients with variables. Since there is 4 operational numbers here, there are 4 terms.
The area of a sheet of paper is approximately
Answer:
1/2²m²
Step-by-step explanation:
Differentiate the function with respect to x. Shot steps
The differentiated form of the function with respect to x will be e³ˣ³.9x².
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range. The exponential function is that rapidly increases and the value of the exponential function is always positive. It denotes with exponent y = a^x where a is a constant and a>1.
It is given that the function is,
y=e³ˣ³
Differentiate the function with respect to x.
\(=\frac{dy}{dx} \\\\ =\frac{d}{dx}\left(\left(e^3\right)^{x^3}\right) \\\\ =e^{3x^3}\frac{d}{dx}\left(3x^3\right) \\\\ =e^{3x^3}\cdot \:9x^2\)
Thus, the differentiated form of the function with respect to x will be e³ˣ³.9x².
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How do you simplify ((-3)2)3.
Answer: -18
Step-by-step explanation:
((-3)2)3
((-3) x 2) x 3
Apply rule (-a) = - a
(-3) = -3
-3 x 2 x 3
-6 x 3
= -18
0 is an angle in a right-angled triangle. tan 0 = 23/52 What is the value of 0? Give your answer in degrees to 1 d.p.
The value of the angle θ is approximately 24.2 degrees to 1 decimal place.
In a right-angled triangle, the tangent of an angle is defined as the ratio of the length of the side opposite the angle to the length of the side adjacent to the angle. Given that tan θ = 23/52, we can find the value of the angle θ.
To find the value of θ, we can use the inverse tangent or arctan function. Taking the inverse tangent of both sides of the equation, we have:
θ = arctan(23/52)
Using a calculator or trigonometric tables, we can evaluate the inverse tangent of 23/52. The result is approximately 24.2 degrees.
Note that in the context of a right-angled triangle, the tangent function is defined for acute angles (less than 90 degrees). Since 0 degrees is the smallest possible angle, it is considered an acute angle in this case.
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a sheet metal worker earns $26.80 per hour after receiving a 4.5% raise. what was the sheet metal worker's hourly pay before raise? Round your answer to the nearest cent
Answer
$25.59
Step-by-step explanation:
subtract by percentage or you can also do:
100% - 4.5% = 95.5%
95.5% x $26.80 = $25.594
IF ROUNDED: $25.59
Answer:
$25.65
Step-by-step explanation:
Let the original hourly rate be r.
Then 1.045r + $26.80/hr.
Dividing both sides by 1.045, we get:
$26.80/hr
r = ------------------ = $25.65 This was the before-raise pay rate.
1.045
What is x in the equation?
Answer:
x = 15
Step-by-step explanation:
the segment inside the triangle is an angle bisector and divides the side opposite the bisected angle into segments that are proportional to the other two sides, that is
\(\frac{x}{21-x}\) = \(\frac{25}{10}\) ( cross- multiply )
10x = 25(21 - x)
10x = 525 - 25x ( add 25x to both sides )
35x = 525 ( divide both sides by 35 )
x = 15
I'm stuck on this...
Answer:
A. 65
Step-by-step explanation:
The sum of the measures of the interior angles of a triangle is always 180 degrees. This means that j+k+l = 180. j is equal to l, so I can rewrite this as k+2j = 180. k is 50, so 50+2j is 180, and 2j is 130. This means that j is 65.
Answer:
A. 65°
Step-by-step explanation:
We are given that <J ≅ <L
We know that all angles in a triangle = 180°
K + J + L = 180
50 + 2J = 180
2J = 130
<J = 65°
I hope this helps!
In 2005, the price of a guitar was $246. By 2008, the price had increased to $300. Assuming that the guitar's price increases linearly. What is the price of the guitar by 2011?
Considering the expression of a line, the price of the guitar in 2011 is $354.
Definition of linear equationA linear equation o line can be expressed in the form y = mx + b
where
x and y are coordinates of a point.m is the slope.b is the ordinate to the origin.Knowing two points (x₁, y₁) and (x₂, y₂) of a line, the slope of the line can be calculated using:
m= (y₂ - y₁)÷ (x₂ - x₁)
Substituting the value of the slope m and the value of one of the points, the value of the ordinate to the origin b can be obtained.
Equation in this caseBeing:
Price= m× Year + b(x₁, y₁)= (2005, 246)(x₂, y₂)= (2008, 300)the slope can be calculated as:
m= (300 - 246)÷ (2008 - 2005)
m= 54÷ 3
m= 18
Considering point 2 and the slope m, you obtain:
300= 18×2008 + b
300= 36,144 + b
300- 36,144 = b
-35,844 = b
Finally, the equation of the line is Price= 18×Year - 35,844
Now, you want to know the price of the guitar in 2011. Replacing in the linear equation, you get:
Price= 18×2011 - 35,844
Solving:
Price= 36,198- 35,844
Price= 354
In summary, the price of the guitar by 2011 is $354.
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pls help asap :(
solve for h
Question 4 of 10
Find the difference. Enter your answer in the box below as a fraction, using
the slash mark (/) for the fraction bar.
8-7
14 14
There is a 2/17 difference between 16/17 and 14/17 as 17 is the shared denominator of both fractions.
what is fractions ?A whole can be represented by any number of equal parts, or fractions. The number of units of a particular size is expressed as a fraction in standard English. 8, 3/4. Fractions are included in wholes. Numbers are expressed in mathematics as the ratio of the numerator to the denominator. In simple fractions, each of these is an integer. A complicated fraction contains a fraction in either the numerator or denominator. There is a difference between the numerators and denominators of true fractions. A sum that is a fraction of a whole is referred to as a fraction. You can evaluate it by dissecting the whole into smaller pieces. For example, 12 is used to represent one-half of a full number or item.
Given,
To get the difference between 16/17 and 14/17, discover their common denominator first.
17 is the shared denominator of both fractions.
To solve, multiply the result by the numerator of the fractions, then divide the sum by the common denominator:
16 - 14/17 (16 - 14) = 2/17 is the solution.
Therefore, there is a 2/17 difference between 16/17 and 14/17.
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The 2000 CDC growth charts were developed using a reference population of infants. A pediatrician looks up one of the charts and finds that the 5th percentile for weights of baby boys at 10-1/2 months is 16.7 pounds. This means that ______of the 10-1/2-month-old baby boys in the reference population weigh 16.7 pounds or less, and ______of these baby boys weigh 16.7 pounds or more.
This means that 5% of the 10-1/2-month-old baby boys in the reference population weigh 16.7 pounds or less, and 95% of these baby boys weigh 16.7 pounds or more.
Percentile WeightThe determination is based on the definition of a percentile. A percentile is a value below which a certain percentage of the data falls. So, in this case, if a weight of 16.7 pounds is at the 5th percentile for 10-1/2-month-old baby boys, then 5% of the baby boys in the reference population have a weight of 16.7 pounds or less. This also means that the remaining 95% of the baby boys in the reference population have a weight of more than 16.7 pounds.
The calculation of percentiles is based on the ranking of the data set. The data is first sorted in ascending order and then divided into 100 equal parts, with each part representing a percentile. The value at each percentile is the value below which a certain percentage of the data falls.
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The local news is conducting a poll of the residents' opinions regarding a new traffic law that is being proposed. At the end of a news segment, viewers had the opportunity to dial in or use social media to choose whether they agree or disagree with the law. A large sample size was represented, and this poll was repeated again one week later with similar results. When working with this data, what best applies?
Options :
a. The surveys are biased because people chose to respond or not.
b. Because of the large sample size, the results are most accurate of all members of the community.
c. The same sampling methods were used for both polls, demonstrating reliability.
Answer:
a. The surveys are biased because people chose to respond or not
Step-by-step explanation:
When surveys incorporates a large number of people of a whole population, coupled with the fact that subjects of the survey or research are not compelled to make a choice or air their opinion. In the scenario above, opinion about the new policy is to be expressed by a large audience whereby there is a high tendency that some will no interest in the news nor its content. Leaving only those audience who are more interested and likely the most affected by the policy to respond. This way there will be no distinction between those who disagree and those who fail to respond. It would be more advisable to employ a sample audience who are interested and woykd give a verdict on the policy.
3x^2 - 24 = 0 ......... Solve equation by taking square roots
Answer:
x = 2 √ 2 , − 2 √ 2
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
\(\displaystyle x=\±2\sqrt{2}\)
Step-by-step explanation:
\(3x^2-24=0\)
\(3x^2-24+24=0+24\)
\(3x^2=24\)
\(\displaystyle \frac{3x^2}{3}=\frac{24}{3}\)
\(x^2=8\)
\(x=\±\sqrt{8}\)
\(x=\±2\sqrt{2}\)
can someone help ASAP plzz
Answer:
c. 84 ft²
Step-by-step explanation:
lateral area = 1/2 * base perimeter * height
where
base sides = 6 ft.
height (L) = 7
lateral area = 1/2 x (4*6) * 7
lateral area = 84 ft²
LA = 1/2pl
p = base perimeter
l = length
p = (6 * 4)
p = 24
l = 7
Use the formula and solve.
LA = 1/2(24)(7)
LA = 1/2(168)
LA = 84
Therefore, the answer is C
Best of Luck!
50 points!! Can someone please help me?? Random answers will be reported! I will mark brainliest to the correct answer :)
Answer:
x = 25
Step-by-step explanation:
By Sum of Angles in Triangle Theorem:
(2x + 2) + (2x + 2) + (3x + 1) = 180,
7x + 5 = 180,
7x = 175,
x = 175/5 = 25
A
-pound bag of Kitty Kibbles is
. An
-pound bag of Feline Flavor is
. Which statement about the unit prices is true?
Feline Flavor has a higher unit price of
/pound.
Kitty Kibbles has a higher unit price of
/pound.
Kitty Kibbles has a higher unit price of
/pound.
Feline Flavor has a higher unit price of
/pound.
The statement about the unit prices which is true is Kitty Kibbles has a lower unit price of $1.30/pound.
The correct answer choice is option D.
How to solve unit prices?Cost of 16-pound bag of Kitty Kibbles = $20.80
Unit price of kitty kibbles = Price / number of pounds
= $20.80 / 16
= $1.30 per pound.
Cost of 8-pound bag of Feline flavor = $11.20
Unit price of feline flavor = Price / number of pounds
= $11.20 / 8
= $1.40 per pound
Ultimately, the unit price of kitty kibbles and feline flavor is $1.30 and $1.40 respectively.
Complete question:
A 16-pound bag of Kitty Kibbles is $20.80. An 8-pound bag of Feline Flavor is $11.20. Which statement about the unit prices is true?
A. Feline Flavor has a lower unit price of $1.40/pound.
B. Feline Flavor has a lower unit price of $1.30/pound.
C. Kitty Kibbles has a lower unit price of $1.40/pound.
D. Kitty Kibbles has a lower unit price of $1.30/pound.
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Lin is paid 90$ for 5 hours of work?
At this rate, how much would Lin be paid for 5.5 hours of work?
Answer:
99 dollars
Step-by-step explanation:
90 divided by 5 equals 18 slice that in half you get 9.
90 + 9 =99
Answer:
the awnser for this question is 99 hope this helps
A coffee place is selling coffees for $2.50 each and cappuccinos for $3.75 each.
Today the coffee place sold a total of 70 drinks (coffees and cappuccinos) for a total of $222.50.
a) Write an equation that represents the information.
b) Solve the equation in (a) to find how many coffees and how many cappuccinos the coffee place sold today.
Answer:
Step-by-step explanation:
a) Let's denote the number of coffees sold as 'x' and the number of cappuccinos sold as 'y'.
The equation that represents the given information is:
2.50x + 3.75y = 222.50
b) To solve the equation, we need to find the values of 'x' and 'y' that satisfy the equation.
Since we have two variables and only one equation, we cannot determine the exact values of 'x' and 'y' independently. However, we can find possible combinations that satisfy the equation.
Let's proceed by assuming values for one of the variables and solving for the other. For example, let's assume 'x' is 40 (number of coffees):
2.50(40) + 3.75y = 222.50
100 + 3.75y = 222.50
3.75y = 222.50 - 100
3.75y = 122.50
y = 122.50 / 3.75
y ≈ 32.67
In this case, assuming 40 coffees were sold, we get approximately 32.67 cappuccinos.
We can also assume different values for 'x' and solve for 'y' to find other possible combinations. However, keep in mind that the number of drinks sold should be a whole number since it cannot be fractional.
Therefore, one possible combination could be around 40 coffees and 33 cappuccinos sold.
What the meaning of statement this?
This statement essentially establishes a relationship between the sets X, Y, and z, stating that there exists a subset Y for each element x in X such that the elements in Y are present in some subset z of X.
The given statement is a symbolic representation of a logical proposition involving quantifiers and logical connectives. Let's break down its meaning:
∀ X ∃ Y ∀u(u ∈ Y ↔ ∃z(z ∈ X ∧ u ∈ z))
The symbol ∀ (universal quantifier) indicates that the statement applies to all elements in the set X.
The symbol ∃ (existential quantifier) indicates that there exists at least one element in the set Y.
The statement can be interpreted as follows:
"For all elements x in the set X, there exists a set Y such that for every element u in Y, u is an element of Y if and only if there exists a set z in X such that u is an element of z."
In simpler terms, the statement asserts that for every element x in the set X, there is a set Y that contains elements u if and only if there exists a set z in X that also contains u.
It is important to note that the precise meaning and implications of this statement may depend on the context and interpretation of the sets X, Y, and their elements.
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for the function f(x)=2/1+2x find f-1(x)
Starting with the expression:
\(f(x)=\frac{2}{1+2x}\)Substitute f(x)=y and isolate x:
\(\begin{gathered} y=\frac{2}{1+2x} \\ \Rightarrow1+2x=\frac{2}{y} \\ \Rightarrow2x=\frac{2}{y}-1 \\ \Rightarrow x=\frac{1}{y}-\frac{1}{2} \end{gathered}\)Swap x for y and vice versa:
\(y=\frac{1}{x}-\frac{1}{2}\)Set y=f^{-1}(x):
\(f^{-1}(x)=\frac{1}{x}-\frac{1}{2}\)What is the probability that Amelia rolls a 5 on the first roll?
Answer: 1/6
Step-by-step explanation: If this is in reference to a die then that is your answer because there are 6 sides