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OpenStudy (anonymous):
At Central Park Zoo, the ratio of sea lions to penguins is 4:11. If there are 84 more penguins that sea lions, how many sea lions are there?
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hero (hero):
4/11 = x/(x+84) 11x = 4(x+84) 11x = 4x + 336 7x = 336 x = 336/7 x =48 x +84 = 132
hero (hero):
There are 48 sea lions
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