Apainter uses 4 gallons of paint to paint each apartment in a building. if the painter has 45 gallons of paint, how many apartments can be painted completely? how much paint will be left over?

Hi there!

A painter uses 4 gallons of paint to paint each apartment in a building. If he uses 45 gallons of paint, how many apartments can be painted?

Alright, so to find how much apartments can be painted with 45 gallons of paint, using only 4 per apartment, we need to divide 45 gallons on 4 gallons.

45 ÷ 4 = 11.25

The answer will be 11 apartments, with 1/4 of paint left.

Hope this helped!~

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.

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point