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A student answers ​% of the questions on a math exam correctly. If answers questions​ correctly, how many questions are on the​ exam?
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1 vote
A student answers ​% of the questions on a math exam correctly. If answers questions​ correctly, how many questions are on the​ exam?

User Serkan Yilmaz
by
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1 Answer

4 votes

Answer:

30 questions

Explanation:

27=90%

Divide both sides by 9

3=10%
Multiply both sides by 10

30=100%

User Paul Raymond
by
7.1k points
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