Ratios & Proportions Practice

In the song "Rap God," Eminem can spit out 100 words in 16 seconds. What is the ratio of words to seconds?

•  $\frac{100}{16}$ 

•  $\frac{25}{4}$ 

•  $\frac{4}{25}$ 

•  $\frac{16}{100}$  

Suppose there are 8 girls in a class of 30. What is the ratio of boys to girls in the class?

•  $\frac{22}{8}$ 

•  $\frac{11}{4}$ 

•  $\frac{30}{8}$ 

•  $\frac{15}{4}$  

You are following a recipe for making 2.5 dozen muffins. If the recipe calls for 600 grams of flour, what is the ratio of single muffins to grams of flour?

• $\frac{2.5}{600}$

• $\frac{30}{600}$

• $\frac{1}{20}$

Are the following ratios proportionate?

 $\frac{9}{15}$  and  $\frac{18}{30}$  

• Yes

• No

Are the following ratios proportionate?

 $\frac{8}{12}$  and  $\frac{24}{36}$  

• Yes

• No

Are the following ratios proportionate?

 $\frac{33}{44}$  and  $\frac{55}{65}$  

• Yes

• No

A show store buys 150 Nike's for $3000. How many Nike's can they buy for $4500?

• 225

• 100

• 90000

• 180

The line for a roller coaster is moving at about 4 feet every 30 minutes. At this rate, how many hours would it take someone to move 24 feet up in line?

• 180

• 2

• 3

• 5

Drake estimates that he can finish 12 math problems in 45 minutes. How many hours will it take to finish 24 problems?

• 1.5

• 90

• 0.5

• 22.5

Solve for x:

 $\frac{5x}{4}=\frac{2x-9}{2}$  

• -18

• -2

• -1/2

• 5