SOLUTION: How many questions would you need to get correct on a 78 problem quiz in order to get at least a 90 percent as your grade?
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Question 666194: How many questions would you need to get correct on a 78 problem quiz in order to get at least a 90 percent as your grade? Answer by swincher4391(1107) (Show Source):
You can put this solution on YOUR website! x/78 >= 90/100
100x >= 78*90
x>= 70.2
But of course you can't get .2th of a question right. So you must get 71 at least.
