Question

Kevin bought 3 bags of gravel to cover the bottom of his fish tank. He has 8 pounds of gravel left over. how much gravel did Kevin use to cover the bottom of the tank

Answer 1

All but 8 pounds of it...

Answer 2

(3x - 8) pounds of gravel was used to cover the bottom of sinks, where x is the weight of bag of gravel.

Explanation:

We are given the following information in the question:

In order to answer this question we need to make the following assumption

Let x pound be the weight of one bag of gravel.

Total number of bags of gravel bought by Kevin = 3

Weight of 3 bags of gravel = 3x pounds

Amount of gravel left after pouring = 8 pounds

Amount of gravel used to cover the bottom of sink =

Formula:

`\text{Amount of gravel used to cover the bottom of sink} = \\\text{Amount of gravel bought} - \text{Amount of gravel left}\\= 3x -8`

Thus, (3x - 8) pounds of gravel was used to cover the bottom of sinks.