SOLUTION: Carly is 3 times as old as Holly. Carly is 8 years older than Holly. How old, in years, is Carly?

Algebra ->  Testmodule -> SOLUTION: Carly is 3 times as old as Holly. Carly is 8 years older than Holly. How old, in years, is Carly?       Log On


   

Question 1188379: Carly is 3 times as old as Holly. Carly is 8 years older than Holly.
How old, in years, is Carly?

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Carly is 3 times as old as Holly. Carly is 8 years older than Holly.
How old, in years, is Carly?
-----------------
3 times as old --> difference is 2x the youngest's age = 8
---> 4 and 12
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The long version:
---
C = 3H
C = H + 8
---
3H = H + 8
2H = 8
H = 4
C = 12