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Question 932731: In a museum, the ratio of adults to children is 11 to 12. If there are 115 people in the museum, how many children are there?
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! a/c = 11/12
a = (11/12)c
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a + c = 115
c = 115 - a
c = 115 - (11/12)c
c + (11/12)c = 115
(12/12)c + (11/12)c = 115
(23/12)c = 115
c = 115/(23/12)
c = 60
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