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# Ratio help

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The day after the school election it was reported that Danny won the election for class president. For every three votes his opponent received, Danny received 5 votes. Every student voted exactly once. If the students voted only for either Danny or his opponent and Danny's opponent received 312 votes, how many students voted in the election?

Mar 10, 2019

#2
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The day after the school election it was reported that Danny won the election for class president. For every three votes his opponent received, Danny received 5 votes. Every student voted exactly once. If the students voted only for either Danny or his opponent and Danny's opponent received 312 votes, how many students voted in the election?

Let V stand for the total number of votes cast.

The opponent's 3/8 of the votes was 312  so  (3/8) times V  = 312

(3/8)(V)  =  312

V  =  (312)/(3/8)              ( i.e., 312 divided by 3/8 )

To divide by a fraction, you invert the divisor and multiply

V  = (312) x (8/3)  =  2496/8  =  832 total votes

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Mar 10, 2019
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