What is the adult to child ratio of 8:5 if 390 attend how many are adults

asked Jul 2, 2015 183k views

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$a-number\ of\ adults\\\\(a)/(390)=(8)/(5)\ \ \ \ \ \ \ |multiply\ both\ sides\ by\ 390\\\\a=8*78\\\\\boxed{a=624}\leftarrow answer$

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