SOLUTION: One's intelligence​ quotient, or​ IQ, varies directly as a​ person's mental age and inversely as that​ person's chronological age. A person with a mental a

Algebra ->  Systems-of-equations -> SOLUTION: One's intelligence​ quotient, or​ IQ, varies directly as a​ person's mental age and inversely as that​ person's chronological age. A person with a mental a      Log On


   

Question 1129944: One's intelligence​ quotient, or​ IQ, varies directly as a​ person's mental age and inversely as that​ person's chronological age. A person with a mental age of 14 and a chronological age of 20 has an IQ of 112.  What is the chronological age of a person with a mental age of 35 and an IQ of 140 question mark
Answer by josgarithmetic(39618) About Me  (Show Source):
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Quotient, Q
m, mental age
c, chronological age

Q=km%2Fc
-
k=Qc%2Fm
k=112%2A20%2F14
k=160
-
Q=160%28m%2Fc%29

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What is the chronological age of a person with a mental age of 35 and an IQ of 140 ?
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Use the formula; solve it for c in terms of the other two variables.