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03-06-2017
Mathematics

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On Saturday, five members of an ecology club repaired the trail in a nature preserve. The mean number of hours that the club members worked is 7 hours. The hours that 4 members worked is 6, 7, 10, and 8. How many hours did the other club member work? Use words and numbers to explain your answer.

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anonymous79 anonymous79

03-06-2017

Mean number of hours= 7
Total number of hours by all 5 workers= 7*5=35
Number of hours worked by the other worker= 35-6-7-10-8=4
4h

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