SOLUTION: Roberta now is 3 times as old as Ricky. Five years from now she will be twice as old as Ricky is then. What are the ages of both Ricky and Roberta?
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Question 297898: Roberta now is 3 times as old as Ricky. Five years from now she will be twice as old as Ricky is then. What are the ages of both Ricky and Roberta? Answer by unlockmath(1688) (Show Source):
You can put this solution on YOUR website! Hello,
We can set up 2 equation like this: (Let x be Ricky and y be Roberta)
y=3x
y+5=2(x+5) Solve by substitution:
3x+5=2x+10 Subtract 2x and 5 from both sides to get:
x=5
There we go Ricky is now 5 years old. I'll let you figure out the age of Roberta.
Make sense?
RJ
There is a book I wrote on the basics that would help:
www.math-unlock.com
