Wislo Wislo
  • 05-11-2017
  • Mathematics
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A student answered 86 problems on a test correctly and received a grade 78% how many problems were on the test

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Аноним Аноним
  • 05-11-2017
let x be number of problems on the test  , then:-

0.78x = 86

x = 86 / 0.78 =  110 
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