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Jenny has finished 12 of the 20 lessons and her piano book what percent did she finish

1 Answer

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Answer:


let \: the \: percentage \: be \: x \\ therfore \: x\%of \: 20 = 12 \\ (x)/(100) * 20 = 12 \\ (x)/(5) = 12 \\ x = 12 * 5 \\ x = 60\%

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User Dieterg
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