7th Grade Math

(Marvins-Underground-K-12) #1
322 Percent

Examples 1 and 2 Find each number. Round to the nearest tenth if necessary.


  1. 8% of 50 2. 95% of 40 3. 42% of 263

  2. 110% of 70 5. 115% of 20 6. 130% of 78


Example 3 7. TAXES Mackenzie wants to buy a new backpack that costs $50. If the tax
rate is 6.5%, how much tax will she pay when she buys the backpack?

= Step-by-Step Solutions begin on page R1.
Extra Practice begins on page EP2.

Examples 1 and 2 Find each number. Round to the nearest tenth if necessary.


  1. 65% of 186 9. 45% of $432 10. 23% of $640

  2. 54% of 85 12. 12% of $230 13. 98% of 15

  3. 130% of 20 1515 175% of 10 16. 150% of 128

  4. 250% of 25 18. 108% of $50 19. 116% of $250

  5. 32% of 4 21. 5.4% of 65 22. 23.5% of 128

  6. 75.2% of 130 24. 67.5% of 76 25. 18.5% of 500


Example 3 26. BASEBALL Tomás got on base 60% of the times he was up to bat. If he was
up to bat 5 times, how many times did he get on base?


  1. TELEVISION In a recent year, 17.7% of households watched the finals of a
    popular reality series. There are 110.2 million households in the United
    States. How many households watched the finals?


B Find each number. Round to the nearest hundredth if necessary.


  1. ^4
    5
    % of 500 29. 5
    ^1
    2
    % of 60 30. 20 _^1
    4
    % of 3

  2. 1,000% of 99 32. 100% of 79 33. 520% of 100

  3. 0.15% of 250 35. 0.3% of 80 36. 0.28% of 50

  4. COMMISSION In addition to her salary, Ms. Lopez Package
    #1 $2,375
    Package
    #2 $3,950
    Package
    #3 $1,725


earns a 3% commission, or fee paid based on a percent
of her sales, on every vacation package that she sells.
One day, she sold the three vacation packages
shown. What was her total commission?


  1. INTERNET A family pays $19 each month for Internet
    access. Next month, the cost will increase by 5%.
    After this increase, what will be the cost for the
    Internet access?

  2. BUSINESS A store sells a certain brand of lawn mower for $275. Next year,
    the cost of the lawn mower will increase by 8%. What will be the cost of
    the lawn mower next year?


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