SOLUTION: Jack is 4 times as old as Lacy. 8 years from now the sum of their ages will be 76. How old are they now?
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Question 1034606: Jack is 4 times as old as Lacy. 8 years from now the sum of their ages will be 76. How old are they now?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Jack's age now
Let = Lacy's age now
-----------------------
(1)
(2)
----------------------------
Substitute (1) into (2)
(2)
(2)
(2)
(2)
and
(1)
(1)
(1)
--------------------
Jack is 48 and Lacy is 12
--------------------------
check:
(2)
(2)
(2)
(2)
OK
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