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24 February, 20:28

The length of a rectangle is increased by 10% and its width is reduced by 20%. Express the area of the new rectangle as a percentage of the area of the initial rectangle

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  1. 24 February, 20:53
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    A = (l+0.1l) * (b-0.2b)

    Step-by-step explanation:

    let the length and width be l and b

    length = l + (10/100*l) = l+0.1l

    width = b - (20/100*b) = b-0.2b

    thus the area would be

    A = (l+0.1l) * (b-0.2b)
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