The length is 3 times the width. The perimeter is 96 cm. What is the length and the width?
Please help 10 goes to the first right answer
2007-10-07 14:37:36 · 4 answers · asked by Miss. Tee98 4 in Education & Reference ➔ Homework Help
***please explain so I can know how to do another one!! THANKS!
2007-10-07 14:41:00 · update #1
12 x 36
the width = a
the lenght = 3a
and there are 2 lenghts and 2 widths
so 96 = 2(4a)
96= 8a
96 / 8 = a
12 = a
2007-10-07 14:41:19 · answer #1 · answered by coachmatt21 3 · 0⤊ 1⤋
right, so perimeter = 2 x length + 2 x width
you know that 96 = 6l + 2w
so 48 = 3l + w
divide 48 by 4, so one equals 12. The width is 12, the length is 36.
To check- 2 times 12 add 2 times 36 should equal 96, which is does
2007-10-07 21:44:39 · answer #2 · answered by Anonymous · 0⤊ 0⤋
L=36
w=12
2007-10-07 21:43:48 · answer #3 · answered by hill 5 · 0⤊ 0⤋
We know L +w+w+l = 96
Also, we know 3l=w.
so L + 3l +L +3l=96
8L=96
L=12
w=36.
2007-10-07 21:46:14 · answer #4 · answered by hottotrot1_usa 7 · 0⤊ 0⤋