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

fdvs

step-by-step explanation: vsfdvsfvd

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: