Question 527858
 a student missed 10 problems on a test and received a grade of 82%. if all the problems were equal value, how many problems were on the test? 
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The 10 problems is 18% of the total.
Let total # of problems be "x":
x/10 = 100/18
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x = 10(100/18)
x = 56 when rounded up (total # of problems)
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Cheers,
Stan H.