Sergio got 80% on his math test. If he answered 24 questions correctly, how many questions where on his test?

asked Jul 28, 2016 70.9k views

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x- all questions x-80 x-0.8| divide by 0.8 x-30 30 questions were on the test.

Fronk answered Jul 30, 2016

by Fronk

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$x-\ all\ questions\\\\ 80\%x=24\\\\ 0.8x=24\ \ \ \ | divide\ by\ 0.8\\\\ x=30 \\\\ There\ were\ 30\ qestions.$

Andrew Quebe answered Aug 2, 2016

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