SOLUTION: Jay is hoping to have at least a 90% average in his science class based on five exams. He scored 92, 87, 89, and 94 on his past four assessments. What is the lowest score that Jay

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Question 1017909: Jay is hoping to have at least a 90% average in his science class based on five exams. He scored 92, 87, 89, and 94 on his past four assessments. What is the lowest score that Jay can earn on the fifth test in science in order to reach his goal of 90%?

Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
We do this like this...call his 5th score, x...
(92 + 87 + 89 + 94 + x) / 5 >= 90
(362 + x) / 5 >= 90
362 + x >= 450
x >= 88
He scores 88 or better and he's done it...