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dglatz50 dglatz50
  • 31-12-2016
  • Mathematics
Answered

in a certain class, the ration of passing grades to failing grades is 9 to 3. If 17 grades were failing, how many passing grades were there?

Verified Answer :

surjithayer surjithayer
  • 31-12-2016

\(\frac{9}{3} = \frac{x}{17} cross multiply 3x=17*9=153 x= \frac{153}{3} =51\)

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