If a 10,000 gallon swimming pool requires 4 ounce of a chemical, then how many ounces of the chemical would be required for a 2500 gallon pool.

1 ounce of the chemical would be required for a 2500 gallon pool.

Step-by-step explanation:

Given, a 10,000 gallon swimming pool requires 4 ounce of a chemical, so rate of its volume to amount of chemical =

We assume that , there is a proportional relationship between volume of swimming pool and the amount of chemical added to it.

Let x be the amount of chemical require for a 2500 gallon pool  , then

I.e. 1 ounce of the chemical would be required for a 2500 gallon pool.

s

step-by-step explanation:

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.