SOLUTION: Kathy has test scores of 88, 90, 91, and 78. What must she score on her next test to have an average of 84 for all five tests?

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Question 704104: Kathy has test scores of 88, 90, 91, and 78. What must she score on her next test to have an average of 84 for all five tests?

Answer by lynnlo(4176) About Me  (Show Source):
You can put this solution on YOUR website!
88+90+91+78+78=422 divided by 5=84