SOLUTION: Mary is 24 years older than her son John. The sum of their ages is 40. How old is John?

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: Mary is 24 years older than her son John. The sum of their ages is 40. How old is John?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 278544: Mary is 24 years older than her son John. The sum of their ages is 40. How old is John?
Found 2 solutions by rfer, Alan3354:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
40-24=16 yrs

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Mary is 24 years older than her son John. The sum of their ages is 40. How old is John?
--------------------
M = J + 24
M + J = 40
--------------
Sub for M in 2nd equ
(J+24) + J = 40
2J + 24 = 40
2J = 16
J = 8