SOLUTION: student scored 85, 49, 67, and 83 on four tests. What score would the student need to make on the next test to have a mean score of 75?

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Question 586069: student scored 85, 49, 67, and 83 on four tests. What score would the student need to make on the next test to have a mean score of 75?

Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
(85+49+67+83+x)/5=75
284+x=75*5
284+x=375
x=375-284
x=91