The perimeter of the triangle shown to the right is 163 find the length of each side

To find M from that series of data, you'd just have to fill out the simple equation of (5x)+(7x+8)+(7x+3)=163. Group like terms to get 19x+11=163. Subtract 11 from 163 to get 19x=152. 152/19 is 8. X is 8. Plug that in each side to get 40m, 64m and 59m, in the same order of (5x)+(7x+8)+(7x+3)

TL;DR of it all:

(5x)+(7x+8)+(7x+3)

40m, 64m, 59m. Don't forget the unit of measurement.

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.