SOLUTION: Isabel is 10 years older than Marie. In 2 years, twice Isabel's age will be equal to 3 times Marie's age. How old is each now?
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Question 1088579: Isabel is 10 years older than Marie. In 2 years, twice Isabel's age will be equal to 3 times Marie's age. How old is each now?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Isabel's age now
Let = Marie's age now
---------------------------
(1)
(2)
---------------------------------
Substitute (1) into (2)
(2)
(2)
(2)
(2)
(2)
and
(1)
(1)
-----------------------
Isabel is 28
Marie is 18
---------------
check:
(2)
(2)
(2)
(2)
OK
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