Thursday

April 24, 2014

April 24, 2014

Posted by **Naibe** on Thursday, January 24, 2013 at 11:21pm.

a)what is the perimeter of the walkway along the outer edge ?

b) what is the combined area of the garden and the walkway ?

c)find the combined area when the width of the walkway is 4ft

- Algebra -
**Reiny**, Friday, January 25, 2013 at 12:19amgarden:

length = 10 ft

width = 9 ft

garden including walkway:

length = 10+2x

width = 9+2x

a) perimeter = 2(10+2x) + 2(9+2x)

= 20 + 4x + 18 + 4x

= 8x + 38

b) area of whole thing

= (10+2x)(9+2x)

= 90 + 38x + 4x^2

c) when x=4

area according to formula = 90 + 38(4) + 4(4^2) = 306

area using arithmetic:

length = 18

width = 17

area = 18x17=306

- Algebra -
**Naibe**, Friday, March 1, 2013 at 12:45amThe length of a rectangular rug is twice its width. The rug is centered in a rectangular room. Each edge is 3ft. From the nearest wall. What is the area of the room?

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