SOLUTION: A student got a 73, 91, 84, and 90 on his tests. What is the minimum grade he must get to have an average of 85?
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Question 878434: A student got a 73, 91, 84, and 90 on his tests. What is the minimum grade he must get to have an average of 85?
Answer by JulietG(1812) (Show Source): You can put this solution on YOUR website!
Assuming there are 5 tests of equal value...
.
So far, he has 338 points (73+91+84+90)
To have an average of 85, he needs .85 * 500 possible points, or 425
425 - the 338 points he already has = 87
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