Proportionality

Find the unit rate of 624 calories in 3 servings.

• 1,872 calories per serving
• 208 calories per serving
• 624 calories per serving
• 621 calories per serving

What is the constant of proportionality for the following graph?

• 80
• 20
• 40
• 160

What is the constant of proportionality?

• 3
• 4
• 2
• 5

Alycia earned $20.40 in 3 hours of babysitting for her neighbor. What did she charge each hour for her babysitting services?

• $23.40 per hour

• $61.20 per hour

• $6.80 per hour
• $17.40 per hour

Addison drove 1,080 miles in 20 hours on her cross-country road trip. What was her average speed in miles per hour?

• 51.6 miles per hour

• 10.60 miles per hour

• 54 miles per hour

• 1,100 miles per hour

Adrian and Michael collected hockey cards at a ratio of 6: 5. If Adrian collected 36 hockey cards, how many hockey cards did they collect altogether?

• 66 cards

• 47 cards

• 42 cards

• 30 cards

At the bake sale the ratio of cakes to pies sold was 6:10.

If there we 24 cakes sold, how many pies were sold?

• 30

• 40

• 20

• 35

Valerie answered 28 problems on her test correctly. If Valerie correctly answered 80% of the problems on the test, then how many total problems were on the test?

• 22 problems

• 25 problems

• 35 problems

• 36 problems

Mrs. Peabody's classroom was collecting canned goods for a food drive. Her class set a goal of collecting 300 cans during the drive. At the end of the drive, her class only collected 270 cans. What percent of the goal did they meet?

• 70%

• 80%

• 90%

• 95%

Kim purchased a dress for $189. The dress was on sale for 75% of its original price. What was the original price of Kim's dress?

• $141.75

• $39.68

• $252

• $114