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 she uses the shower for 8 minutes each day?


14 gallons

48 gallons

69 gallons

96 gallons

Verified Answer :

48 gallons... since the first shower head gives 9 gallons per minute you multiply 9 by 8 then you use the equation and multiply 3 by 8 then you subtract the two shower heads

Answer:

The correct answer is 48....

Step-by-step explanation:

When I first read this question, I thought it was asking me to do all this crazy stuff with 9, until I reread it and realized what it was really asking...

\(y=3x\)

\(y=3(8)\) - Multiply 3 x 8

\(y=24\) - 24 isn't our answer, but if we continue to work our way up our inputs... 16 being our next input.

16 is our next input, because 8 + 8 = 16!!

\(y=3(16)\)

\(y=48\)