Ratios and Mixed Review

Question 1

The store sells oranges for p cents each and Mrs. Jones buys n oranges. Write an equation for the total (t).

Accepted Answer

C. t = pn

Question 2

You are buying pizzas. The equation of (y) in dollars for x pizzas is y=18x. Is it a proportional relationship?

Accepted Answer

C. Yes, the graph of the equation passes through the origin.

Question 3

Which mathematical statement represents the relationship between feet and yards.

Accepted Answer

A. number of feet / number of yards = 3

Question 4

A ___ is a symbol, usually a letter, used to represent a number

Accepted Answer

variable

Question 5

What are the common prime factor(s) of 15 and 60?

Accepted Answer

3 and 5

Question 6

Simplify 24

Accepted Answer

16

Question 7

What are the rules for Order of Operations?

Accepted Answer

Multiply and divide from left to right, then add or subtract

Question 8

Evaluate the expression when x = 5 and y = 1/2: 2xy

Accepted Answer

5

Question 9

Write "9 more than 2 times x is 23" as an algebraic expression

Accepted Answer

2x + 9 = 23

Question 10

Which is NOT an example of an expression?

Accepted Answer

x2 = 9

Question 11

Which of the following pairs of ratios form a proportion?

Accepted Answer

B. 9 boys to 5 girls and 18 boys to 10 girls

Question 12

(7 + 4) - 3 x 2

Accepted Answer

5

Question 13

Are the following expressions equivalent? 10 ÷ (8 ÷ 4) = ( 10 ÷ 8) ÷ 4

Accepted Answer

No

Question 14

6 + 42 ÷ 4

Accepted Answer

10

Question 15

Which value below is NOT divisible by 3?

Accepted Answer

D. 400

Question 16

A three pound bag of apples is selling for $5.00 at the store. What is the unit rate?

Accepted Answer

C. $1.67

Question 17

Find the relationship between a and b.

Accepted Answer

b = 3a

Question 18

If the ratio of rectangle length to width is 3 to 2, what is the length of a rectangle whose width is 4 inches?

Accepted Answer

C. 6 in.

Questions 18