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23 April, 12:46

Decrease 640 by 24 percent

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Answers (2)
  1. 23 April, 12:54
    0
    486.4

    Step-by-step explanation:

    640 - (24% * 640) =

    (1 - 24%) * 640 =

    (100% - 24%) * 640 =

    76% * 640 =

    76 : 100 * 640 =

    76 * 640 : 100 =

    48,640 : 100 =

    486.4
  2. 23 April, 13:04
    0
    486.4

    Step-by-step explanation:

    Multiply 640 by the percent and then subtract the percent from the whole since the question is asking for a decrease by 24 percent, not what 24 percent of 640 is.

    640 * 0.24 = 153.6

    640 - 153.6 = 486.4
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