Ratios Rates Proportions Practice

8. Sophia uses 3 cups of peanut butter to make 51 peanut butter cookies. At this rate, how many cups of peanut butter does she need to make 153 peanut butter cookies?

• 6 cups

• 9 cups

• 12 cups

• 15 cups

Ms. Robbins traveled to 46 states in 184 days. At this rate, how many states would she travel to in 92 days?

• 23

• 24

• 22

• 21

In a basket filled with tiles, the ratio of red tiles to green tiles is 7:3. Katrina wants to make the same tile mix with 161 red tiles. How many green tiles should Katrina use?

• 69

• 70

• 71

• 72

The table shows the results of a survey about student’s favorite color. Express the ratio in simplest form that compares the number of students that chose blue to the total number of students.

• 11:55

• 22:110

• 2:10

• 1:5

Express 85.5 meters in 45 seconds as a unit rate.

• 1.9 meters per second

• 2.1 meters per second

• 1.5 meters per second

• 1.7 meters per second

Express 243 students to 9 classrooms as a unit rate.

• 27 students per classroom

• 30 students per classroom

• 24 students per classroom

• 21 students per classroom

7. Express 30 baskets made in 5 minutes as a unit rate.

• 6 baskets per minute

• 5 baskets per minute

• 7 baskets per minute

• 10 baskets per minute

10. Grace can read 1755 words in 10 minutes. Ava can read 1330 words in 7 minutes. Use unit rates to determine if each pair of rates is equivalent. Which of the following is correct?

• Grace and Ava have equivalent reading rates.

• Grace reads faster than Ava.

• Ava reads faster than Grace.

• Neither Grace nor Ava's rates can be compared.

Is the given table a proportional relationship? If so, what is the constant?

• Yes; 1/3

• Yes; 3

• Yes; 5

• No

Solve for x 

• x = 1/10

• x = 10

• x = 4

• x = 5