itsrafiaax itsrafiaax

29-03-2018
Mathematics

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jamie mowed 7 lawns. He earned $10, 15, 12, 15, 8, and 15 for six lawns. how much did he earm the seventh time if the mean is $12?

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amaarisboss amaarisboss

29-03-2018

9
hope i helped pls thank me

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MathGenius04 MathGenius04

29-03-2018

(10 + 15 + 12 + 15 + 8 + 15 + x) / 7 = 12

(75 + x) / 7 = 12

75 + x = 84

x = 9

He earned $9 the 7th time.

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