A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly?

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A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly?

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Answer 1 · 2017-06-18T13:15:59

$16$ $16$

Explanation:

First you convert $80 %$ $80%$ into a decimal which is $.80$ $.80$ then you multiply it by $20$ $20$ .

$.80 \times 20 = 16$ $.80xx20=16$

We multiply it by $20$ $20$ because that's our total and by $.80$ $.80$ because that's the amount that we got correct. Had it been $100 %$ $100%$ then that would mean we got every question right.

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A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly?

1 Answer

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