31/3−1 5/9 =

i will give brainlist

3 1/3 - 1 5/9

get a common denominator 9

3 1/3*3/3 - 1 5/9

3 3/9 - 1 5/9

borrow from the 3

2 9/9+3/9 - 1 5/9

2 12/9 - 1 5/9

1 7/9

 16/9

Step-by-step explanation:

Simplify the following:

3 + 1/3 - (1 + 5/9)

Put 1 + 5/9 over the common denominator 9. 1 + 5/9 = 9/9 + 5/9:

3 + 1/3 - 9/9 + 5/9

9/9 + 5/9 = (9 + 5)/9:

3 + 1/3 - (9 + 5)/9

9 + 5 = 14:

3 + 1/3 - 14/9

Put 3 + 1/3 - 14/9 over the common denominator 9. 3 + 1/3 - 14/9 = (9×3)/9 + 3/9 - 14/9:

(9×3)/9 + 3/9 - 14/9

9×3 = 27:

27/9 + 3/9 - 14/9

27/9 + 3/9 - 14/9 = (27 + 3 - 14)/9:

(27 + 3 - 14)/9

| 1 |  

| 2 | 7

+ | | 3

| 3 | 0:

(30 - 14)/9

| 2 | 10

| 3 | 0

- | 1 | 4

| 1 | 6:

 16/9

idk lol

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.