A standard showerhead in Reyna's house dispenses 9 gallons of water per minute.
Reyna 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 Reyna save each day with the change in showerheads if he uses the shower for 8 minutes each day?

14 gallons
48 gallons
69 gallons
96 gallons

Question

A standard showerhead in Reyna's house dispenses 9 gallons of water per minute.
 Reyna 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 Reyna save each day with the change in showerheads if he uses the shower for 8 minutes each day?

 14 gallons 
48 gallons 
69 gallons
96 gallons

misty1212 · Answer

HI!!

misty1212 · Answer

what is $8\times 9$?

nathaliama13 · Answer

hello, and 8 X 9 would equal 72, but there isn't a 72 as a choice. :(

misty1212 · Answer

i know it is not
72 is the amount of water used for the old shower head at nine gallons per minute times 8 minutes
now what is $3\times 8$?

nathaliama13 · Answer

:)
3 X  8 would equal 24 :)

nathaliama13 · Answer

@misty1212

misty1212 · Answer

ok the old one would use 72, the new one uses 24
how much savings is that ?

nathaliama13 · Answer

omg thank you so much Misty :) I got it !! it'd be 48

misty1212 · Answer

yes it is!
$$\color\magenta\heartsuit$$

anonymous · Answer

genius over here:)