Step-by-step explanation:
please mark me as brainlest
I will give Brainliest if you explain!
I know this is a basic problem but I need a step by step explanation
A scale drawing of a house uses a scale of 0.5 inches = 2 feet.
What is the length, in inches, of a line on the scale drawing that represents an actual length of 5 feet?
Answer:
1.25 inches
Step-by-step explanation:
0.5 = 2 feet
? = 5 feet
Divide 2 by 5 to find how many times to multiply 0.5 by:
5 ÷ 2 = 2.5
Multiply the two values together:
2.5 x 0.5 = 1.25
So the length is 1.25 inches.
Hope this helps!
A penguin walks 10 feet in 6 seconds. At this speed: 1. How far does the penguin walk in 45 seconds ?
Answer:
Step-by-step explanation:
10 feet............................6 seconds
?......................................45 seconds
? feet=10*45/6=75 feet
75 feet in 45 seconds
Solve the system of equations using the substitution or elimination method.
y = 4x - 7
4x + 2y = -2
.
Show your work
Correct x and y
The solution to the system of equations is x = 1 and y = -3.
To solve the system of equations using the substitution or elimination method, let's start with the substitution method.
Given equations:
y = 4x - 7
4x + 2y = -2
We'll solve equation 1) for y and substitute it into equation 2):
Substituting y from equation 1) into equation 2):
4x + 2(4x - 7) = -2
4x + 8x - 14 = -2
12x - 14 = -2
Now, we'll solve this equation for x:
12x = -2 + 14
12x = 12
x = 12/12
x = 1
Now that we have the value of x, we can substitute it back into equation 1) to find y:
y = 4(1) - 7
y = 4 - 7
y = -3
Therefore, the solution to the system of equations is x = 1 and y = -3.
for such more question on system of equations
https://brainly.com/question/4262258
#SPJ8
4 plates and 3 cups cost 20.90 dollars. 5 plates and 4 cups cost 26.50 dollars. Each plate costs the same amount as the other plates, and each cup costs the same amount as the other cups. What is the cost of 1 plate? What is the cost of 1 cup?
Answer:
Hope this helps you understand...
In the given figure, which angle is complementary to <4
Answer: The definition of a complementary angle is "Either of two angles whose sum is 90°." Thus the complementary angle for 4 is angle 5.
P.S. if you feel this answer is satisfactory I would appreciate it if you would mark it brainiest.
Convert to a decimal. Be sure to make repeating decimals.
Answer:
0.25
Step-by-step explanation:
1/4 to a decimal is 0.25.
Two 8-foot-long 2 × 4s are cut into sections of equal length. Board A is cut into 9 equal sections, of which 5 are used. Therefore, of the board has been used; of it remains. Board B is cut into 7 equal sections, of which 4 are used. That means of the board has been used; of it remains. Which has the longest remaining section, Board A or Board B?
Answer:
Board A
Step-by-step explanation:
Since the boards were split into equal sections, we can think of them as fractions.
\(\frac{5}{9}\) of Board A was used, meaning \(\frac{4}{9}\) of Board A remains.
\(\frac{4}{7}\) of Board B was used, meaning \(\frac{3}{7}\) of Board B remains.
To give these fractions common denominators, we multiply the numerator and denominator by the opposite denominator.
4/9 * 7/7 = 28/63
3/7 * 9/9 = 27/63
28/63 is greater than 27/63. This means that Board A has the longest remaining section.
Board A has the longest portion remaining section.
What is the Ratio?A ratio is defined as a relationship between two quantities, it is expressed as one divided by the other
Two 8-foot-long 2 × 4s are cut into sections of equal length. Board A is cut into 9 equal sections, of which 5 are used.
To determine the longest remaining section, Board A or Board B
The boards can be considered as ratios since they have been divided into equal portions.
5/9 of Board A was used, while Board A's significance is still unchanged.
4/7 of Board B was used, while Board B's significance is still unchanged.
We multiply the numerator and denominator by the opposing denominator to give these ratios common denominators.
⇒ 4/9 * 7/7 = 28/63
⇒ 3/7 * 9/9 = 27/63
So 27/63 is greater than 28/63.
This indicates that Board A has the longest portion remaining section.
Learn more about the Ratio here:
brainly.com/question/1504221
#SPJ2
Robert gets a job with a starting salary of $35,000. He is promised a $2500 raise each
subsequent year. Which of the following numbers represents his salary during his 7th
year of employment?
A. $45,000
B. $47,500
C. $50,000
D. $52,500
Step-by-step explanation:
starting salary = $35,000
raise in 1 year = $2500
raise in 7 year = $17,500
salary on 7th year = $35,000 + $17,500
= $52,500
-----------------------------------FOLLOW ME1 = with base 7
Help help help
Answer:
log base of 8 of 1
Step-by-step explanation:
i did this
Pedro observed what customers ordered at his ice cream shop and found the following probabilities:
- P(Vanilla) = 0.3
- P(Sundae) = 0.2
- P(Vanilla and Sundae) = 0.15
Find the probability that a customer ordered Vanilla ice cream given they ordered a Sundae.
Answer: 75%
Step-by-step explanation: 0.15/0.2=0.75
The probability that a customer ordered Vanilla ice cream given they ordered a Sundae is 0.75 or 75%
What is probability?It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.
We have:
Pedro observed what customers ordered at his ice cream shop and found the following probabilities:
P(Vanilla) = P(V) = 0.3
P(Sundae) = P(S) = 0.2
P(Vanilla and Sundae) = P(V and S) = 0.15
To find the probability that a customer ordered Vanilla ice cream given they ordered a Sundae:
P(V|S) = P(V and S)/P(S)
P(V|S) = 0.15/0.2
P(V|S) = 0.75 or 75%
Thus, the probability that a customer ordered Vanilla ice cream given they ordered a Sundae is 0.75 or 75%
Learn more about the probability here:
brainly.com/question/11234923
#SPJ2
6+4-(4x2)+22^3=?? Can someone help! PLEASE THIS IS MY THIRD TIME ASKING PLEASE HELPPP
Answer:
The answer is 10,650. Just use the calculator next time you get one of these questions. :D
Answer:
Sure.. the answer is 10650.
Step-by-step explanation:
here's how.
first, Simplify 4 × 2 to 8.
\(6 + 4 - 8 + 22 ^{3} \)
then, turn 22³ into exponent from and solve.
\(6 + 4 - 8 + 10648\)
now, Simplify 6 + 4 to 10.
\(10 - 8 + 10648\)
and now, Simplify 10 - 8 to 2
\(2 + 10648\)
lastly, add 2 + 10648 to 10650.
\(10650\)
hence, the answer is 10650.
A company uses six filling machines of the same make and model to place detergent into cartons that show a label of 32 ounces. The production manager has complained that the six machines do not place the same amount of fill into the cartons. A consultant requested that 20 filled cartons be selected randomly from each of the six machines and the content of each carton carefully weighed. The response is the deviation from 32 ounces.
(a) Is this study experimental, observations, or mixed?
(b) Identify all factors, factor levels, and factor-level combinations. For each factor indicate if it is experi- mental or observational.
(c) What type of design is being implemented here?
(d) We import the data and display the structure of the dataframe. We also coerse the variable Machine to a factor, and display the factor levels.
(a) This study is observational because the consultant is not manipulating any variables or imposing treatments on the machines.
(b) The factors are:
Machine (experimental factor): There are six machines, labeled A through F.
Carton (observational factor): There are 20 cartons selected randomly from each machine.
Deviation from 32 ounces (response variable): This is the weight difference between the actual fill amount and the target fill amount of 32 ounces.
The factor levels are:
Machine: A, B, C, D, E, F
Carton: 1, 2, 3, ..., 20
The factor-level combinations are all possible pairs of machine and carton, such as A-1, A-2, ..., F-20.
(c) This is a nested design because the 20 cartons selected from each machine are not interchangeable between machines.
(d) Here's an example code snippet in R to import the data and display the structure of the dataframe:
data <- read.csv("filling_machine_data.csv")
data$Machine <- factor(data$Machine)
levels(data$Machine)
Assuming the data is stored in a CSV file called "filling_machine_data.csv", the code reads in the data, coerces the Machine variable to a factor, and displays the factor levels of Machine
learn about deviation,
https://brainly.com/question/475676
#SPJ11
Solve the system of linear equations below.
y = -2x + 19
y = x + 7
A. x = 4, y = 11
B. x = -12, y = -5
C. X = -4, y = 3
D. x = 8, y = 3
Answer:
A. x=4 y=11
Step-by-step explanation:
y=x+7
y=-2(y-7)+19
y=-2y+14+19
y=-2y+33
y+2y=33
y(1+2)=33
y=33/3
y=11
x=4
For this problem, assume that the lottery pays $ 20 on one play out of 200, it pays $1500 on one play out of 7500, and it pays $ 20000 on one play out of 200000. 1) What probability should be assigned to a ticket's paying $ 20? 2) What probability should be assigned to a ticket's paying $ 1500? 3) What probability should be assigned to a ticket's paying $ 20000? 4) What probability should be assigned to a ticket's not winning anything?
1.The probability of winning $20 is 1/200.
2.The probability of winning $1500 is 1/7500.
3.The probability of winning $20000 is 1/200000.
4. the probability of not winning anything is 0.9989375
1.The probability of winning $20 is
P(winning) = p(winning chance)/total
=1/200.
2.The probability of winning $1500 is
P(winning 1500) = p(winning chance)/total
= 1/7500.
3.The probability of winning $20000 is
P(winning) = p(winning chance)/total
=1/200000.
4.To find the probability of not winning anything, you can subtract the sum of the probabilities of winning $20, $1500, and $20000 from 1. This is 1 - (1/200 + 1/7500 + 1/200000) = 1 - 0.0010625 = 0.9989375
Probability is a mathematical concept used to measure the likelihood of an event occurring. It is expressed as a number between 0 and 1, with 0 representing an impossible event and 1 representing a certain event. A probability of 0.5, for example, means that there is an equal chance of an event happening or not happening. In general, the probability of an event can be calculated as the number of favorable outcomes divided by the number of possible outcomes.
To learn more about probability:
https://brainly.com/question/30034780
#SPJ4
Factor this trinomial 4x^2-6x-10 If you can please try to show me how to do it.
Answer:
\(=2(2x-5)(x+1)\)
Step-by-step explanation:
So we have the trinomial:
\(4x^2-6x-10\)
First, factor out a 2:
\(=2(2x^2-3x-5)\)
Now, factor within the parentheses.
To do so, we want to find two numbers. When multiplied, these two numbers must equal (a)(c) and when added, they must equal b
(a)(c) is 2(-5) or -10 and b is -3. So, we want two numbers that when multiplied together gives -10 and when added gives -3.
-5 and 2 works. Therefore:
\(=2(2x^2-3x-5)\)
Replace -3x with 2x and -5x:
\(=2(2x^2+2x-5x-5)\)
Factor out a 2x for the first two terms. And factor out a negative 5 for the remaining two:
\(=2(2x(x+1)-5(x+1))\)
Grouping:
\(=2(2x-5)(x+1)\)
And we're done!
30 Points! To Who Ever Can Give Me The Answer
Answer:
6
Step-by-step explanation:
A soup company puts 12 ounces of soup in each can. The company has determined that 97% of cans have the correct amount. Which of the following describes a binomial experiment that would determine the probability that a case of 36 cans has all cans that are properly filled?
a. n=36, p=0.97, x=1
b. n=12, p=0.36, x=97
c. n=12, p=0.97, x=0
d. n=36, p=0.97, x=36
Answer:
Option d: n = 36, p = 0.97, x = 36.
Step-by-step explanation:
We are given that a soup company puts 12 ounces of soup in each can. The company has determined that 97% of can have the correct amount.
We have to describe a binomial experiment that would determine the probability that a case of 36 cans has all cans that are properly filled.
Let X = Number of cans that are properly filled
The above situation can be represented through binomial distribution;
\(P(X = x) = \binom{n}{x} \times p^{x} \times (1-p)^{n-x} ; x = 0,1,2,........\)
where, n = number of trials (samples) taken = 36 cans
x = number of success = all cans are properly filled = 36
p = probabilitiy of success which in our question is probability that
can have the correct amount, i.e. p = 97%
So, X ~ Binom (n = 36, p = 0.97)
Hence, from the options given the correct option which describes a binomial experiment that would determine the probability that a case of 36 cans has all cans that are properly filled is n = 36, p = 0.97, x = 36.
If V = 15 cm, W = 20 cm, X = 25 cm, Y = 7 cm, and Z = 22 cm, what is the perimeter of the object?
A.
53 cm
B.
64 cm
C.
118 cm
D.
78 cm
Answer:
Sum of all the sides.
Step-by-step explanation:
Perimeter is the sum of the distance in length or width, or height or circumference of all the sides of an object.
Therefore the sum total of the given sides V, W, x ,Y, Z are;
15 +20 + 25 + 7 + 22 = 89cm
Since a picture isn't available to know which sides of the objects can be added.
3/5 = 24/40 =?/60. what comes at the question mark?
Answer:
? = 36
Step-by-step explanation:
Knowing that 3/5 and 24/40 is equal
Therefore we can either use:
3/5 = ?/60 or 24/40 = ?/60
I will use 3/5 = ?/60
Let ? = x
Hence we have
3/5 = x/60
Multiply both sides by 10
6 = x/6
Multiply both sides by 6
x = 36
Therefore, the question mark = 36
Let's check the answer by Simplifying the fraction:
3/5 = 36/60
3/5 is in already simplify
36/60 simplify = 3/5
3/5 = 3/5
Thus, the question mark = 36
[RevyBreeze]
Step-by-step Solution:
Let the "?" be known as "x".
Given equation:
3/5 = 24/40 = x/60
Therefore, we obtain the following equations:
Equation 1: 3/5 = 24/40Equation 2: 3/5 = x/60Equation 3: 24/40 = x/60Clearly, the second and the third equation have the "x" variable included. Therefore, we will only focus on the second and third equations.
3/5 = x/6024/40 = x/60Note: We can choose any equation to solve for x. The value of x in both equations will be the same as 3/5 = 24/40.
Determining the "x" variable in Equation 2:
⇒ 3/5 = x/60⇒ 5x = 60 × 3 [Cross multiplication]⇒ 5x = 180 [Simplifying]⇒ 5x/5 = 180/5 [Dividing]⇒ x = 36 [Simplifying]Determining the "x" variable in Equation 3:
⇒ 24/40 = x/60⇒ 40x = 24 × 60 [Cross multiplication]⇒ 40x = 1440 [Simplifying]⇒ 40x/40 = 1440/40 [Dividing]⇒ x = 36 [Simplifying]Therefore, the value of "?" is 36.
A student is solving the problem
x^2 + 10x + _ = 16 + _
by method of completing the square. What number should the student add to both sides?
A. 4
B. 16
C. 25
D. 5
We should add 25 both side by method of completing the square.
We have to given that;
A student is solving the problem
x² + 10x + _ = 16 + _
Now, We can completing the square as;
⇒ x² + 10x + 5² = 16 + 5²
⇒ x² + 10x + 25 = 16 + 25
⇒ (x + 5)² = 16 + 25
Hence, We should add 25 both side by method of completing the square.
Learn more about the quadratic equation visit:
brainly.com/question/1214333
#SPJ1
Help please! I’ll give brainliest!
Answer:the last one
Step-by-step explanation:
Simplify (w3)4•(w5)2
Answer:
\(w^{22}\)
Step-by-step explanation:
\((w^3)^4\cdot(w^5)^2=w^{3*4}\cdot w^{5*2}=w^{12}\cdot w^{10}=w^{12+10}=w^{22}\)
he roots of the function f(x) = x2 – 2x – 3 are shown. What is the missing number?
x = –1 and x =
what is 2+1 this will get you points.
Answer:
╭━━━╮
┃╭━╮┃
╰╯╭╯┃
╭╮╰╮┃
┃╰━╯┃
╰━━━╯
Step-by-step explanation:
what is the quotient of -56 and -7
Answer:
-63
-56 + -7 = -63
Answer:
The answer would be 8
-56/-7 = 8
negative times negative or negative divided by negative always equals positive
Hope this helps:)
Step-by-step explanation:
factor step by step:
x^2+1
Answer:
(x + i) (x - i)
Step-by-step explanation:
The expression x^2 + 1 is a sum of squares, which means that it cannot be factored using real numbers. However, it can be factored using complex numbers.
To factor x^2 + 1, we can use the fact that i^2 = -1, where i is the imaginary unit.
We can rewrite x^2 + 1 as:
x^2 + 1 = x^2 - (-1)
Now, we can use the difference of squares formula to factor x^2 - (-1):
x^2 - (-1) = (x + i)(x - i)
Therefore, the factored form of x^2 + 1 is:
(x + i)(x - i)
I chose the first one please help if its not correct. Simplify.
y+ (15+ y)
15 + 2 y
17 y
15 y
15+ y
Answer:
15+2y
Step-by-step explanation:
take y to the other side
we know that a confidence interval for a population proportion is (0.22,0.40), with a margin of error of 0.09.
What is the sample proportion, p ?
helppp!
a. box 1: always, sometimes , never / box 2: remain ,do not remain
b. box 1: always, sometimes , never/ box 2: always, sometimes , never
c. box 1 : always, sometimes , never/ box 2: remain, not remain/ box 3: remain, not remain
d. box 1 : awlays, sometimes, never/ box 2 : an equal distance, different distance/ box 3 : some, all, no
e. box 1 : awlays, sometimes, never/ box 2 : would, would not / box 3 : all, no.
Answer:
a. always, remain
b. always, remain
c. never, not remain, not remain
d. always, an equal distance, all
e. never, would not, all
Step-by-step explanation:
They are all correct, hope this helps -w-
Two identical gardens are to be weeded, each by a two-person team. Team A includes one gardener who could weed the garden in 2 h and another who could weed the garden in 4 h. Team B includes two gardeners, either of whom could weed the garden in 3 h. Which team will finish first? Explain.
Step-by-step explanation:
Team A time is 1 garden / ( 1 garden/ 2 hr + 1 garden/4 hr) = 1 1/3 hr
Team B = 1 / ( 1/3 + 1/3) = 1 1/2 hr
Team A wins !