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Ainat [17]
3 years ago
8

You earned a 84% on a science test. You answered 21 questions correctly. How many questions were on the test?

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
6 0
20 x .80 = 16 
So the answer would be 16. 
I hope this helps :)
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\frac{-1}{5}=\frac{-1*2}{5*2}=\frac{-2}{10}\\\\\\\frac{1}{2}=\frac{1*5}{2*5}=\frac{5}{10}\\\\\\

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