SOLUTION: You have one more math test. Here are your present scores: 89 , 92 , 78 , 83 , 83 . What score must you get to raise the mean to 87?

SOLUTION: You have one more math test. Here are your present scores: 89 , 92 , 78 , 83 , 83 . What score must you get to raise the mean to 87?

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Question 899524: You have one more math test.
Here are your present scores:
89 , 92 , 78 , 83 , 83 .
What score must you get to raise the mean to 87?
Answer by swincher4391(1107) (Show Source): You can put this solution on YOUR website!
(89+92+78+83+83+x)/6 = 87
Multiply both sides by 6.
89+92+78+83+83+x = 522
425 + x = 522
Subtract 425
x = 97

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