Question

You are trying to use less
water on laundry this month than you used on laundry
last month. The amount of water w (in gallons)
you save after x loads of laundry is given by
w(x) = 160 - 20x. How many loads of laundry did
his month if you saved 40 gallons of water?

Answer 1

Answer:

6

Step-by-step explanation:

$40=160-20w \\ \\ -120=-20w \\ \\ w=6$

Answer 2

He did 6 loads of laundry that month.

What is Linear equations in one variable ?

A linear equation in one variable is an alzebeaic expression of highest degree one and contains one variable.

Here w(x) represents amount of water and x represents number of loads

By the given equation

w(x) = 160 - 20x

 40 = 160 - 20x

 20x = 160 - 40

 20x  = 120

      x = 6

∴ He did 6 loads of laundry that month.

learn more about linear equation here :

https://brainly.com/question/11897796

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