SOLUTION: Salma has scored 88,91,75,94 on her previous four tests. What score does she need on her next test so that her average (mean) is 86?

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Question 849660: Salma has scored 88,91,75,94 on her previous four tests. What score does she need on her next test so that her average (mean) is 86?
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
The next test would make 5 scores. So, we want 86*5 = 430 total points.
88+91+75+94+x = 430
x+=+430-88-91-75-94+=+highlight%2882%29