Kevin bought 3 bags of gravel to cover the bottom of his fish tank. He has 6 pounds of gravel left over. How much gravel did Kevin use to cover the bottom of the tank? Kevin used pounds of gravel.

Amount of gravel used = (3x - 6) pound

Step-by-step explanation:

Given:

Amount of beg = 3

Each bag contain gravel = x pound

Left amount of gravel = 6 pound

Find:

Amount of gravel used

Computation:

Amount of gravel used = (Amount of beg)(Each bag contain gravel) - Left amount of gravel

Amount of gravel used = (3)(x) - 6

Amount of gravel used = (3x - 6) pound

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation:

7/2

(decimal: 3.5)

welcome ; )

step-by-step explanation: