SOLUTION: zelma is eighteen years older than her son. she was three times as old as he was oneyear ago. how old are they now?
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Question 691607: zelma is eighteen years older than her son. she was three times as old as he was oneyear ago. how old are they now?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = her age now
Let = her Son's age now
= her age 1 year ago
= her Son's age 1 year ago
given:
(1)
(2)
-----------------------
Substitute (1) into (2)
(2)
(2)
(2)
(2)
and, since
(1)
(1)
(1)
Zelma is 28
Her Son is 10
-----------
check:
(2)
(2)
(2)
(2)
OK
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