SOLUTION: Your grades are 83, 94, 86 and 91. What grade do you need to earn on your next test to have an average of 90

Algebra ->  Average -> SOLUTION: Your grades are 83, 94, 86 and 91. What grade do you need to earn on your next test to have an average of 90      Log On


   

Question 995309: Your grades are 83, 94, 86 and 91. What grade do you need to earn on your next test to have an average of 90
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
x=score on next test
Average=(Sum of test scores/number of test scores)
90=(83+94+86+91+x)/5
450=354+x
96=x
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ANSWER: You would need 96 on your next test to average 90.