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18-02-2017
Mathematics

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A copy was made of Sally's autograph. The copy resize the photo so that it measures 4 inches wide by 7 inches long. If the actual painting is 16 inches wide, what is it's length ?

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Аноним Аноним

18-02-2017

the ratio of width to length will be the same so

4/7 = 16/l
l = (7*16) / 4 = 7 * 4 = 28

length = 28 inches

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