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mel-nik [20]
4 years ago
6

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 $1

2?
Mathematics
2 answers:
Advocard [28]4 years ago
6 0
9
hope i helped pls thank me
Tanzania [10]4 years ago
3 0
(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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