SOLUTION: zelma is 18 years older than her son. she was 3 times as old as he was one year ago. how old are they now?
Algebra.Com
Question 383248: zelma is 18 years older than her son. she was 3 times as old as he was one year ago. how old are they now?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
zelma is 18 years older than her son. she was 3 times as old as he was one year ago. how old are they now?
--------
Equations:
z = s + 18
(z-1) = 3(s-1)
-----
Substitute for "z" and solve for "s":
(s+18-1) = 3(s-1)
(s+17) = 3s-3
2s = 20
s = 10 yrs (Son's age now)
---
Since z = s+18, z = 28 (Zelma's age now)
==========================================
Cheers,
Stan H.
RELATED QUESTIONS
Zelma is 18 years older than her son. She was 3 times as old as he was 1 year ago. How... (answered by ankor@dixie-net.com)
Zelma is 18 years older than her son. She was 3 times as old as he was
1 year ago. How... (answered by oberobic)
Zelma is eighteen years older than her son. She was three times as old as he was one year (answered by junior403)
zelma is eighteen years older than her son. she was three times as old as he was one... (answered by ptaylor)
Zelma is eighteen years older than her son. She was three times as old as he was one year (answered by josmiceli)
Zelma is eighteen years older than her son. She was three times as old as he was one year (answered by Earlsdon)
zelma is eighteen years older than her son. she was three times as old as he was one year (answered by richwmiller)
zelma is 18 years older than her son. She was three times as old as he was one year go.... (answered by josmiceli)
Zelma is eighteen years older than her son. She was three times as oldas he was one year... (answered by mananth)