SOLUTION: Alan is six years older than Karen. The product of Allan's age three years from now and Karen's age three years ago is 324 years. find their present ages.
Algebra.Com
Question 889984: Alan is six years older than Karen. The product of Allan's age three years from now and Karen's age three years ago is 324 years. find their present ages.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Alan is six years older than Karen. The product of Allan's age three years from now and Karen's age three years ago is 324 years. find their present ages.
-----------------
Equations:
a = k + 6
(a+6)(k-3) = 324
---------
Substitute for "a" and solve for "k"::
(k+12)(k-3) = 324
k^2 + 9k - 360 = 0
------------------------
k= 15 (Karen's age now)
a = k+6 = 21 (Allan's age now)
==================
Cheers,
Stan H.
==================
RELATED QUESTIONS
Charles is 4 years older than Jake. The product of Charles' age three years from now and (answered by ikleyn)
Maggie, Amy, and Karen are relatives. They have lived a total of 105 years combined.... (answered by dkppathak,josgarithmetic,ikleyn)
Anton is four years older than Lisa. The product of his
age 3 years from now and Lisa... (answered by Edwin McCravy)
karen is 3 times as old as Bill, and Bill is 2 years younger than Janice. Six years ago... (answered by mananth)
karen is 5 years older than the square age of daniel's age. In 20 years time Karens age... (answered by ankor@dixie-net.com)
Clyde, Jeffrey and Geneross are three brothers. The sum of their ages five years ago is... (answered by josgarithmetic,greenestamps)
Four years ago, Julie was the same age as Paul will be in three years. Right now Paul is... (answered by FrankM)
Castro is three years older than Sam, Allan is two years older than Sam. If the sum of... (answered by josgarithmetic)
Paul's age is three years older than Ruth's age. If Emma's age is twice that of Paul's... (answered by ankor@dixie-net.com,greenestamps,josgarithmetic,MathTherapy)