Asked by Devon

M is 5 years older than N. The product of their ages is 84. How old is M?

Answers

Answered by Anonymous
N + 5 = m
m + n = 84
(n + 5) + n = 84
2n+5= 84

solve for n and then subtract from 84 to find m.
Answered by Anonymous
Holdup I didn't read that right
Answered by Anonymous
n + 5 = m
nm = 84
n=84/m
84/n= n +5
84= n^2 + 5n
n^2 + 5n - 84 = 0
Use quadratic equation or complete the square and you get n = 7 so M = 12
7x12=84
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