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15-04-2017
Mathematics

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A baby weighed 7.25 at birth. at the end of 8 month,the baby weighed 2 1/2 times its birth weight. how many pounds did the baby weigh at the end of 8 months

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15-04-2017

2 1/2 is in mixed fraction. So let's first make it into improper fraction.

(2*2 + 1) / 2 = 5/2

5/2 of 7.25 = (5*7.25) / 2 = 18.125

in short, 18.125 is the answer

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EXERCISES 1. For n = 15, 18, 22, 30, and 35, find all positive integers less than n and relatively prime to n.