A rectangle has sides of 3x – 4 and x + 6?

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A rectangle has sides of 3x – 4 and x + 6?

A rectangle has sides of
3x – 4 and x + 6. Find the expression that represents its perimeter.

2007-12-02 09:37:48 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2 answers

P = 2(3x - 4) + 2(x + 6)
P = 6x - 8 + 2x + 12
P = 8x + 4

2007-12-03 05:34:18 · answer #1 · answered by Como 7 · 1⤊ 1⤋

Ok go

The perimeter of a rectangle: P= 2L + 2W

L = 3x - 4
W = x+ 6

Now

P= 2(3x - 4) + 2(x + 6)

P= 6x - 8 + 2x + 12

P= 8x + 4.......simplify:

P= 4(2x +1)
-------------------Â¦

Hope this helps!
Bye.bye

2007-12-03 21:06:58 · answer #2 · answered by ƒέ 4 · 0⤊ 1⤋