SOLUTION: How many cans of dog food are needed in 6 days if 40 cans are used in 31?

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Question 689020: How many cans of dog food are needed in 6 days if 40 cans are used in 31?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
6/x=31/40
31x=240
x=240/31
x=8