Question

Marco needs to buy some cat food. At the nearest​ store, 3 bags of cat food cost ​$7.50. How much would Marco spend on 5 bags of cat ​food?

Answer 1

9514 1404 393

Answer:

$12.50

Explanation:

The cost of 5 bags will be 5/3 times the cost of 3 bags:

5-bag cost = (5/3)($750) = $12.50

Marco would spend $12.50 on 5 bags of cat food.

_____

If you like, you can find the "unit rate" -- the cost of one bag of cat food:

$7.50 / (3 bags) = $2.50 /bag

Then, multiply that rate by 5 bags:

(5 bags)($2.50/bag) = $12.50

Note that we have multiplied by 5 and divided by 3, the same as if we had multiplied by 5/3.