math percents

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Can you check these?
18% of 90 is what number?

i got 16.2

what number is 41% of 800?
i got: 1951.22

what number 5% of 522?
i got : 10440

70% of 279 is what number?
i got: 195.3

what number is 90% of 13?
i got : 14.44

9% of 351 is what number?
i got: 32

36% of 95 is what number?
i got 34.2

what number is 56% of 48?
i got: 85.71

96% of what number is 24?
i got 25

40% of what number is 30?
i got 75

50.4 is 36% of what number ?
im stuck

12% of what number is 72?
i got 6

12.8 is 32% of what number?
im stuck

684 is 95% of what number?
i got: 720

72% of what number is 630?
i got: 875

  • math percents -

    first is correct, next two wrong, next right,
    then this what number is 90% of 13?
    i got : 14.44 is wrong
    next two right, then wrong,

    I would recheck them all.

  • math percents -

    Do u have website that explains this

  • math percents. Mrs sue -

    It bought I understood this ? Can u check

  • math percents -

    The word "of" usually indicates the need to multiply:

    90 x 0.18 = 16.2
    800 x .41 = ??

    http://www.aaamath.com/
    Click on Decimals at the left and read.

    Then go here to check your work:
    http://www.wolframalpha.com/

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