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Psychologists use the formula i = 100m/c to measure a person's intelligence. Called the...

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Psychologists use the formula i = 100m/c to measure a person's intelligence. Called the intelligence quotient, or I.Q., i is expressed in terms of m, the person's mental age, and c, his or her chronological age, or number of years he or she has lived. a) Find the I.Q. of someone whose mental age is 18 and whose chronological age is 15. b) Solve the formula for m in terms of i and c. c) Check your answer for part a of this exercise in your formula for part b, letting m= 18 and c = 15. d) Solve the formula that you wrote for part b of this exercise for c in terms of i and m.

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