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Marissa got an 85% on her math quiz. If she got 34 questions right, how many questions were on the test?

User Jpellat
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7.1k points

2 Answers

0 votes
40

34÷85×100=40

Hope it helps
User Sonny Parlin
by
7.1k points
5 votes
To solve this problem we need to determine if 85% is 34, then what is 100%

The easiest way to do this is to set up a proportion

Being
(34)/(85) (x)/(100)

To figure out the "rule" between 85 and 100, we divide 100 by 85.

100/85 = 20/17

To check our rule we can do 85 x 20/17 which = 100

Now to solve the problem so, 34 x 20/17 = 40

Our answer would be 40 :)

If Marissa got an 85% on her math quiz and she got 34 questions right, there would be a total of 40 questions on the test.

I hope this helps!
User Wahab
by
6.9k points
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