pidgenium pidgenium

25-02-2017
Mathematics

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If a varies directly as b, and a = 28 when b = 7, find b when a = 5.

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Aliwohaish12 Aliwohaish12

25-02-2017

a = 28
b = 7

a = 28 * (5/28) = 5
b = 7 * (5/28) = 5/4

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