Chapter 5 Ratio and Proportions

Solve this proportion. Show your cross products work.

• x = 5

• x = 6

• x = 4

• x = 8

Solve this proportion. Show your cross products work.

• b = 46

• b = 40 1/3

• b = 44

• b = 42 2/3

Solve this proportion. Show your cross products work.

• c = 17

• c = 19

• c = 15 1/4

• c = 16

The ratio of men to women at a lecture is 2 to 5. A total of 45 women are at the lecture. How many men are there? Use a proportion to solve and show your work.

• 24 men

• 14 men

• 18 men

• 27 men

Write the ratio as a fraction in simplest form. 198 women to 110 men

• 9/5

• 12/7

• 11/5

• 27/15

Write the ratio as a fraction in simplest form. 44 miles : 16 hours

• 23/8

• 21/8

• 12/5

• 11/4

The table shows the rates for sending text messages.

Are the rates proportional? Show proof in your work.

• yes

• no

The 20-pack container of detergent sells for $5.49. What is the unit rate in dollars per pack? Round your answer to the nearest cent.

• $0.23 per pack

• $0.32 per pack

• $0.29 per pack

• $0.27 per pack

Eighteen oranges are packaged in 3 containers. How many oranges are packaged in 7 containers? Show your proportion work.

• 32 oranges

• 36 oranges

• 44 oranges

• 42 oranges

Find the unit rate.

50 meters in 27.5 seconds

• about 2.12 m/sec

• about 1.64 m/sec

• about 1.82 m/sec

• about 1.76 m/sec