If there is a 7 1/2 foot long couch and i want to scale it down with 1 inch : 2 feet what would the length be

Step-by-step explanation:

1 inch = 2 ft

7 1/2 ft is the same as 7.5 ft

make a proportion

1 inch to 2 ft = x inches to 7.5 ft

make a proportion...

1 / 2 = x / 7.5

cross multiply

(2)(x) = (1)(7.5)

2x = 7.5

x = 7.5 / 2

x = 3.75 inches or 3 3/4 ft <===

answer: kljdcdhjbdlchjad oac apoich a

step-by-step explanation:

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.