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A poster advertising a student election candidate is too large according to the election rules. The candidate is told she must reduce the length and width of the posted by 20.0%. By what percentage must the area of the poster be reduced?

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  1. 12 March, 18:27
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    If the original length and width are x and y, the original area is xy. If each was reduced by 20%, you would have. 8x and. 8y, multiply those and the area is. 64xy, which means that the area is reduced by 36%
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