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September 22, 2014

Homework Help: algerbra

Posted by shay on Monday, December 4, 2006 at 1:31pm.

mrs. johnson is 3 times as old as her son. ten years agoe she was 5 times as old as her son was then.

what is the two equations for this problem?

let x = son's age
and y = Mrs. Johnson's age.
============================
y=3x is one equation.

10 years ago Mrs. Johnson' age was y-10 and the son's age was x-10. At that time, Mrs. Johnson was 5 times older; therefore,
y-10=5*(x-10) is the second equation. Post your work if you need further assistance.

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