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Math 7 Percent Quiz Review

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  • Use the percent proportion: 28 is 35% of what number?
    80
  • Mackenna adopted a 15-pound puppy from the SPCA. After three months, the puppy now weighs 24 pounds. What is the percent of change?
    60% inc
  • Aya estimates the weight of her cat to be 10 pounds. The actual weight of the cat is 13.75 pounds. Find the percent error. Round to the nearest tenth.
    27.3%
  • A salesperson earns 4% commission on furnace sales. What is the commission that the salesperson earns on the sale of $33,000 worth of furnaces?
    $1320
  • Find the percent of change from 240 to 175. Round to the nearest tenth.
    27.1% dec
  • On the first season of “The Biggest Loser”, Tom went from 311 lbs to 208 lbs by the end of the season. Find his percent weight loss.
    33.1% dec
  • In the Central City Grand Prix, out of 30 cars that started the race, 12 of them finished. What percent of the cars finished the race? What percent did not finish the race?
    40% finished, 60% did not finish
  • Eleven of the 48 members of the football team are on the field. What percent of the members are playing?
    22.9%
  • On Monday, Jacob completed 40% of the total miles he wanted to run for the week. If he wanted to run 20 miles during the week, how many miles does he have LEFT to run for the week?
    12
  • In a company, 60% of the workers are men. If 1,380 men work for the company, how many workers are there in all?
    2,300 workers
  • The girls soccer team played 16 games and won 81.25% of them. How many games did the team lose?
    3 games
  • A large university accepts 60% of the students who apply. If 20,500 students apply, how many are accepted?
    12,300 students
  • The predicted temperature today was a high of 55°F. The actual high temperature was 47°F. Calculate the percent error. Round to the nearest tenth.
    17%
  • Use the percent equation: Find 24% of 56.
    13.44
  • Of the total students at Satz Middle School, 224 students are picked up by their parent at dismissal. If this is 28% of the total number of students, how many students are at Satz Middle School altogether?
    800
  • A baby weighed 7.2 pounds at birth and 9.0 pounds at the age of one month. What was the percent of change?
    25% inc.
  • Answer the question above.
    A
  • Use the percent proportion: 14 is what percent of 70?
    20%
  • Ryan measured the length of an object to be 21.1 cm. The actual length of the object is 21.25 cm. What is the percent error? Round to the nearest tenth.
    0.7%
  • Use the percent equation: What is 45% of 80?
    36
  • In a fruit salad there are 20 pieces of watermelon, 36 blueberries, 18 pieces of pineapple, and 14 strawberries. What percent of the fruit salad is not pineapple?
    79.5%