Ratios, Rates, and Proportions

Write the ratio as a fraction in simplest form:

18 red buttons : 12 blue buttons

Write the ratio as a fraction in simplest form:

12 completions to 28 attempts

Find the unit rate:

360 miles in 6 hours

• 360 miles/hour

• 6 miles/hour

• 60 miles/hour

• 10 miles/hour

Find the unit rate:

$5.40 for 12 cans

• $2.70/can

• $0.54/can

• $1.35/can

• $0.45/can

• Yes

• No

• Yes

• No

Tell whether the two ratios form a proportion:

8 feet in 15 seconds; 16 feet in 40 seconds

• Yes

• No

Use the table to write and solve a proportion.

Use the table to write and solve a proportion.

You spend 150 minutes in 3 classes. Write and solve a proportion to find how much time you spend in 5 classes.

• 300 minutes

• 200 minutes

• 250 minutes

• 220 minutes