SOLUTION: Rick's average score on his three tests in math is 80.What must he score on the next test to raise his average to 84?

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Question 868927: Rick's average score on his three tests in math is 80.What must he score on the next test to raise his average to 84?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
%283%2A80+%2B+x%29%2F4 = 84
x = 336 - 240