The proportion that could be used to solve for the variable is:
; p = 12 ⇒ b
Step-by-step explanation:
Direct proportion means that two (or more) quantities increase or decrease in the same ratio
- y = k x is the equation of direct proportion, where k is the constant of proportionality
is the another way to write a proportion
The number of pencils and the cost of them is increased together or decreased together
∴ The number of the pencils and their costs are in direct proportion
- By using the 2nd rule above
∵ The cost of the 7 pencils is $1.68
∵ The cost of p pencils is $2.88
∴ 
The proportion that could be used to solve for the variable is: 
∵ 
- By using cross multiplication
∴ p × 1.68 = 7 × 2.88
∴ 1.68 p = 20.16
- Divide both sides by 1.68
∴ p = 12
The value of variable p is 12
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First, use the distributive property and split 2 off from 1/2 in the hours category.
(2) (1/2)
Next, multiply 2 1/4 times 2, the first integer in the distributive equation.
2 1/4*2 = 4 1/2
For now, put 4 1/2 aside.
Then, multiply 2 1/4 by 1/2.
2 1/4*1/2 = 1 1/8
Now, add the two products together
4 1/2 + 1 1/8 = 5 5/8
Answer is 5 and 5/8
Hope this helps!
Answer:
a. 10 inches
b. 8 inches
c. 
Step-by-step explanation:
a. At side 0, perimeter is 0*4 = 0 in. At side 2.5 inches, perimeter = 2.5*4 = 10 inches, a change of 10 - 0 = 10 inches
b. At side 1, perimeter is 1*4 = 4 inches. At side 3 inches, perimeter = 3*4 = 12 inches, a change of 12 - 4 = 8 inches.
c. We can express the change in the square's perimeter P in terms of the change in the square's side length s as

Answer:
np
Step-by-step explanation:
Answer: 7 times greater because there are 7 days in a week