SOLUTION: Ellen's cat weighs 2 times as much as her sister's kitten. Together the cat and kitten weigh 9 pounds. How much does the kitten weigh?

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Question 736600: Ellen's cat weighs 2 times as much as her sister's kitten. Together the cat and kitten weigh 9 pounds. How much does the kitten weigh?
Answer by musicmaster4(7) About Me  (Show Source):
You can put this solution on YOUR website!
let Ellen's cat=x
let sister's kitten=y
x=2y
x+y=9
trial and error
6+3=9
6=2(3)
6=6
x=6lbs.,y=3lbs.