SOLUTION: a student answered 87.5% of the exam correctly. if she answered 42 problems correctly, how many questions were therer on the exam?
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Question 297433: a student answered 87.5% of the exam correctly. if she answered 42 problems correctly, how many questions were therer on the exam?
Found 2 solutions by vleith, josmiceli:
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
use a ratio
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of questions on exam
There were 48 questions on the exam
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