Question

the dog needs a 1/3 of a cup of dog food each day. the bag holds 5 cups of dog food how many days will it last ?​

Answer 1

15 days

Explanation:

You have 5 cups of food, and you give him 1/3 a day.

So, 5 divided by 1/3, which would get you 15 days. Or you could cross-multiply, meaning you multiply across, but in this case I just made them line up so you can see how to do it.
`(food)/(cupsperday) = 5/(1)/(3) \\OR\\((food))/(1)*(cupsperday) = (5)/(1) *(3)/(1)`