Question

Laura mowed 8 lawns she earned 12,10,15,15,15,10. And 9 for seven lawns.how much did she earn the eighth time if the mean of the data is 12?

Answer 1

10

Explanation:

Find the mean

9+12+10+15+15+15+10+x/8=12

divide 86+x/8=12

multiply both sides by 8

86+x=96

sub 86 from both sides

x=10

hope this helps