Rates Ratios and Proportions Study Guide

88 students for 4 classes
How many students per class?

• 22 students per class

• 22 classes per student

• 25 students per class

• 25 classes per student

Patrick has 2 black, 3 red, and 5   white toy cars. What is the ratio of red toy cars to all the toy cars? 

• 3:5

• 1:3

• 3:11

• 3:10

What are the three ways to write a ratio

• 2;3 , 2 to 3 , 2\3

• 2:3 , 2 to 3 , 2/3

• 2:3 , 2 too 3 , 2/3

Ella has 5 balloons. Taylor has 7 balloons. Write the ratio of Ella's balloons to Taylor's balloons.

• 7:5

• 5:7

• 3:5

• 5:3

There are 7 ushers and 11 technicians helping at the Harper Middle School fall play. What is the ratio of technicians to all helpers?

• 7:11

• 11:18

• 7:18

• 18:11

A unit rate is a rate in which the unit in the denominator is:

• 0

• 3

• 1

• 2

When finding a UNIT RATE, you should __________ the top number by the bottom number.

• Add

• Subtract

• Multiply

• Divide

6 movie tickets cost $30.00. What is the cost per ticket (unit rate)?

• multiply by 6 to get $180 per ticket

• divide by 6 to get $5 per ticket

• multiply by 30 to get $900 per ticket

• divide by 30 to get $1 per ticket

If a dozen bagels cost $8.40, what is the cost per bagel? (1 dozen = 12 bagels)

• $0.84

• $0.42

• $0.70

• $0.07

What is 20% of 75?

• 15

• 60

• 6

• 1.5