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the votes for class presidents is in a ratio of 2:5.in a class of 35,how many more votes did the winner get

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Mongeodaveid
=25 because 2:5 = 35                 5 times 5 = 25
                    2+5 = 35               2 times 5 = 10
                     7  =   35
                     7      7                         = 35
                      =  5
2x + 5x = 35
7x = 35
7x/7 = 35/7

x = 5

Substitute 5 for x:
2 (5) + 5(5) = 35
10 + 25 = 35

The winner got 25 votes, while the losing candidate got 10 votes.

How many more votes did the winner get (than the other candidate)?
25 - 10 = 15 

The winner got 15 more votes (than the other candidate).