2006-10-17 12:30:39 · 5 answers · asked by lazydaisy4991 2 in Science & Mathematics ➔ Mathematics
Let the tree's height be x
then pole's height is 3x
according to the problem
x = 3x -15
2x = 15
x = 15/2 = 7.5 ft
The tree's height is 7.5 ft and that of the poleis 3*7.5 = 22.5ft
2006-10-17 12:37:21 · answer #1 · answered by quark_sa 2 · 1⤊ 0⤋
Pole=Tree+15ft.
Pole=3Tree
3Tree=Tree+15
Tree=7.5ft
Pole=22.5
2006-10-17 20:49:48 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Let x = height of the tree. Pole = 3x. x = 3x-15. Solve for x:
2x=15 x=7.5 feet. Tree is 7.5 ft, pole is 22.5 feet.
2006-10-17 19:35:16 · answer #3 · answered by LaxPlayer35 1 · 0⤊ 0⤋
3x+15= how tall is the pole
2006-10-17 19:33:39 · answer #4 · answered by Dena T 2 · 0⤊ 0⤋
tree is 7.5 ft
pole is 22.5 feet
2006-10-17 19:38:42 · answer #5 · answered by Doctor 2 · 0⤊ 0⤋