The amount of water used to take a shower is directly proportional to the amount of time that the shower is in use. A shower lasting 15 minutes requires 12 gallons of water. Find the amount of water used in a shower lasting 11 minutes.
2006-10-25 14:44:57 · 7 answers · asked by Young & Handsome 2 in Education & Reference ➔ Homework Help
8.8 Gallons
You use 12 G for 15 Min, So that is 12/15
So 12divided by 15 is .8
Then you take .8 times the 11 minutes
8.8 Gallons
2006-10-25 14:47:06 · answer #1 · answered by nooodle_ninja 4 · 0⤊ 0⤋
If 12 gallons used in 15 minutes,
then (12/15) gallons is used in 1 minute.
Therefore, amount of water used in 11 minutes = 11 x (12/15) = 8.8 gallons.
Have a read and make sure you understand this.
2006-10-25 21:52:26 · answer #2 · answered by rob 2 · 0⤊ 0⤋
In order to answer this, you need to set up a proportion. If you to minutes over gallons, then the proportion will be
15 11
– = –
12 x
so, cross multiply and you get 15x = 132
divide by 5, and your answer is..
8.8 gallons of water
2006-10-25 21:53:19 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Equality.
15/12=11/X cross multiply
132=15X
8.8 gallons
2006-10-25 21:51:56 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Set up an equation 12/15 = x/11. Cross multiply to find the answer.
2006-10-25 21:47:03 · answer #5 · answered by Ford Mustang FTW 2 · 0⤊ 0⤋
12/15 = .8 gallons a min.
.8 * 11 = 8.8 gallons
2006-10-25 21:48:37 · answer #6 · answered by Jordan Alexis 6 · 0⤊ 0⤋
8.8 = 132/15
2006-10-25 21:53:08 · answer #7 · answered by hooman m 2 · 0⤊ 0⤋