Question

CORRECT OR FASTEST GET BRAINLIEST!!!!!! A standard showerhead in Marty's house dispenses 7 gallons of water per minute. Marty changed this showerhead to an energy-saving one. The equation shows the amount of water dispensed, y, as a function of the number of minutes, x, for the new showerhead. y = 3x How much water does Marty save each day with the change in showerheads if he uses the shower for 8 minutes each day? the option choices are
4, 12, 32, 53

Answer 1

Water With old showerhead: 7×8=56
Water With new showerhead: y=3x. x=8
y=3×8=24

Water He saved: 56-24=32

Answer 2

Answer: 32 gallons

Step-by-step explanation:

Given: Previous rate of dispensing water= 7 gallons per min

If Marty use 8 min showerhead then

Total amount of water dispensed= $7\times8= 56\ gallons$

After Marty changed the showerhead to energy saving with equation

y=3x, where y is the amount of water dispensed as a function of the number of x minutes for the new showerhead.

When we put x=8 minutes, we get total amount of water dispensed=$3\times8= 24\ gallons$

Water saved by Marty = 56-24 = 32 gallons

Hence, Marty save 32 gallons each day.