i have a math question the lenght of a rectangular.................?

Question

the lenght of a rectangular swimming pool is 6 feet less tan 3 times the width of the pool. if the pool is 39 feet long what is the perimeter.
if u can find the answer can u please explain how thanks

Answer 1

Length = 3w - 6 = 39 feet
3w - 6 = 39
3w = 45
w = 15 feet

Perimeter = 2L + 2W
Perimeter = 2(39) + 2(15)

Perimeter = 108 feet
.
Q.E.D.

Answer 2

The length is 39 feet, the width is 6 feet less tnan 3 times width. 15 x 3 = 45 - 6 = 39. so the pool is 15 feet by 39 feet. The perimeter is 39 + 39+ 15 + 15 = 108 feet.

Answer 3

Width is 15 and Length is 39. P= 108 square feet.

ok, since they said that the length is 39, remember P = LXH.
39 = 3w-6. You solve for w and find the width. Since you know have the width and lenght, you should now know how to find the perimeter.
They said 6 less than 3 times the width. you use 3w - 6 because it is 6 less. if you did 6 - 3w you would get a neg. number when equaled to the length, 39. Now a neg. length does not make sense so it is 3w - 6 = 39. see? :)

Answer 4

the perimeter is 108 feet

if the length of the pool is 39 feet that means the widthe is 45/3 (39+6)/(3)

this means the width is 15 feet long and so the perimeter is 15+15+39+39 which equals 108 feet long

Answer 5

The length is 6 feet less than 3 times the width.
If the width is w, then three times the width is 3w.
Six feet less than 3w is 3w-6.
You're given the length is 39, so
39 = 3w-6
Add 6 to both sides
45=3w
Multiply both sides by 1/3
15=w
Up to here it's mathematics.

This stuff is arithmetic... or it's punching numbers on a calculator.
The perimeter is the distance around the pool = 2l + 2w
=2x39 + 2x15
= 78 + 30
= 108 feet

Answer 6

A) smallest permieter with out going into decimals could be 9 X sixteen = one hundred forty four - perimeter = 50 B) it is authentic because of fact it is the closest to a appropriate sq. mixture you may get, the numbers are 'based in an attempt to communicate. in case you had 4 X 36 ( a extreme and low extensive variety) the fringe is particularly extreme. comprehend? C) 4 X 36 has permieter of 80 6 X24 has perimeter of 60 9 X sixteen has perimeter of fifty D) the closer to being equivalent the numbers are, the smaller perimeter E) a sq. could supply a fringe of 40 8 12 X 12= one hundred forty four= appropriate sq.

Answer 7

39+6=45
45/3=15
15+15+39+39=108ft
108ft is you answer!!