A standard showerhead in Jen's house dispenses 5 gallons of water per minute. Jen 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 Jen save each day with the change in showerheads if she uses the shower for 8 minutes each day?
16 gallons
17 gallons
32 gallons
37 gallons

Question

A standard showerhead in Jen's house dispenses 5 gallons of water per minute. Jen 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 Jen save each day with the change in showerheads if she uses the shower for 8 minutes each day?
 16 gallons 
17 gallons
 32 gallons 
37 gallons

Naruko885 · Answer

@Hanna sdo you have any idea?

Zarkon · Answer

looks like the new shower head only gives 3 gallons per minute.  That is a saving of 2 gallons per minute (assuming y is in gallons)

psirockin2 · Answer

y=5(8)=40
y=3(8)=24

it saves 16 gallons when you switch shower-heads

Zarkon · Answer

or 2 gallons saved per minute times 8 minutes... 2*8=16