alvarozavala alvarozavala

16-03-2017
Mathematics

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Greg is participating in a 4 -day cross-country biking challenge. He biked for 63 , 54 , and 62 miles on the first three days. How many miles does he need to bike on the last day so that his average (mean) is 59 miles per day?

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elirandle elirandle

16-03-2017

the answer is 57

u add up 57+54+62+63=236
the u divide 236÷4=59

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