anonymous
  • anonymous
A standard showerhead in Sonia's house dispenses 12 gallons of water per minute. Sonia 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 Sonia save each day with the change in showerheads if she uses the shower for 8 minutes each day? 9 gallons 17 gallons 72 gallons 93 gallons
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
please help me
DanJS
  • DanJS
The old shower uses \[\frac{ 12 ~gal }{ 1~\min }*\frac{ 8~\min }{ 1 ~day } = \frac{ 12*8 ~gal }{ day }\]
anonymous
  • anonymous
ok

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More answers

DanJS
  • DanJS
Use the function to find the gallons per day for the new one... 8 min per day = x Gallons used by new shower = 3 * x
DanJS
  • DanJS
So the new one uses 25 gallons each day if used for 8 min per day ... the difference between the old and the new is the answer they want
DanJS
  • DanJS
24 gallons, sorry , not 25
anonymous
  • anonymous
ok i understand it now
DanJS
  • DanJS
Water saved each day = (Old shower rate) - (New Shower Rate) =
DanJS
  • DanJS
k
anonymous
  • anonymous
wait
DanJS
  • DanJS
ya
anonymous
  • anonymous
24-12=12 but 12 isnt one of the answer choices
DanJS
  • DanJS
Old shower rate = (12*8) = 96 gal/day New Shower Rate = 3*8 = 24 gal/day
anonymous
  • anonymous
oooooooooooooooooh
anonymous
  • anonymous
so its 96-24
DanJS
  • DanJS
Yes
anonymous
  • anonymous
ok thanks
DanJS
  • DanJS
If you dont know to multiply or divide, Look at the first thing i typed and notice how the units cancel to give you what you are looking for, gal/day
DanJS
  • DanJS
welcome

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