If a varies inverse as b, and a=7 when b=3, find b when a=9

Mathematics
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If a varies inverse as b, and a=7 when b=3, find b when a=9

Oct 10th, 2014

a=k/b

7=k/3

k=3X7=21

b=k/a

Here a=9

b=21/9=2.33

best me please


Oct 10th, 2014

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