Asked by John

In a certain class there are 12 boys and 18 girls. If the class average for an algebra exam is 90 and the boys' average score is 87, what is the girls' average score?
Answered by Steve
(12*87+18x)/(12+18) = 90
Now just solve for x
Answered by Michael
X is 92
Answered by Anonymous
The ratio of boys to girls is 12 to 18 if they are 87 girls how many boys are there
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