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22 January, 17:03

To increase an amount by 28%, multiply by

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Answers (2)
  1. 22 January, 17:25
    0
    Increase by 28% means original+28% of original

    28% of original is 0.28 times original

    so

    original+0.28 times original=1 times original+0.28 times original

    undistribute original

    original (1+0.28)

    original (1.28)

    so multiply it by 1.28 to incrase by 28%
  2. 22 January, 18:42
    0
    To increase a number x by 28%, you do the following:

    f (x) = 1.28x
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