SOLUTION: Mary is now four times as her daughter.four years ago the product of their ages was 40 find their present ages. Thankyou
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Question 638254: Mary is now four times as her daughter.four years ago the product of their ages was 40 find their present ages. Thankyou
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Mary's age now
Let = Daughter's age now
given:
(1)
(2)
------------------------
Substitute (1) into (2)
(2)
(2)
(2)
(2)
(2)
(2)
Daughter's age must be positive, so
the Daughter is 6
and, since
(1)
(1)
(1)
The Mother is 24
--------------
check answers
(2)
(2)
(2)
(2)
OK
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