SOLUTION: Sherman's age and his grandpa's age together equal 72. His grandpa's age is 7 times greater than his age. How old are they. (in fourth grade)

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Question 127900: Sherman's age and his grandpa's age together equal 72. His grandpa's age is 7 times greater than his age. How old are they. (in fourth grade)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Sherman's age and his grandpa's age together equal 72. His grandpa's age is 7 times greater than his age. How old are they.
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Let Sherman be x yrs. old
Then grandpa is 7*x = 7x yrs. old
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EQUATION:
Sherman's age + Grandpa's age = 72
x + 7x = 72
8x = 72
Divide both sides by 8 to get :
x = 9 yrs. (Sherman's age)
7x = 63 yrs. (Grandpa's age)
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Cheers,
Stan H.