SOLUTION: pooky eats three cans of cat food each day. how long will 27 cans of food last?

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Question 179173: pooky eats three cans of cat food each day. how long will 27 cans of food last?
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
if he uses 3 cans per day and he has 27 cans
:
27/3 should give us the amount of days it will last
:
9 days
:
27 cans/ 3 (cans/day) thats cans/(cans/day)..invert (cans/day) and multiply
:
27/3=9 cross%28%28cans%29%29%2A%28day%2Fcross%28cans%29%29=%28days%29 most of the time when you just look at the units you can figure a problem out