Question

Amira has 3/4 of a bag of cat food .Her cat eats 1/10 of a bag per week . How many weeks will the food last ?

Answer 1

namely how many times does 1/10 go into 3/4?

`\bf \cfrac{3}{4}/ \cfrac{1}{10}\implies \cfrac{3}{4}\cdot \cfrac{10}{1}\implies \cfrac{3}{1}\cdot \cfrac{10}{4}\implies \cfrac{3}{1}\cdot \cfrac{5}{2}\implies \cfrac{15}{2}\implies 7(1)/(2)`

Answer 2

7 1/2 weeks

Explanation:

To determine how many weeks her food will last, we take the amount of food and divide by how much she feeds her cats.

3/4 bag ÷ 1/10 bag per week

Copy dot flip

3/4 * 10/1

30/4

15/2

7 1/2 weeks