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October 31, 2014

October 31, 2014

Posted by **Anonymous** on Wednesday, June 6, 2012 at 10:46pm.

- Algebra -
**Anonymous**, Wednesday, June 6, 2012 at 11:42pmLooks like a case for substitution.

width = w

length = l

width = 3/4 length

w = 3/4l

2(w + 2) + 2(l + 2) = 50cm

(2w + 4) + (2l + 4) = 50cm

Substitute w with the information you were given earlier (the width of a rectangle is three fourths the length):

2(3/4l) + 4 + 2l + 4 = 50cm

2(3/4l) + 2l + 8 = 50cm

6/4l + 2l = 42cm

1.5l + 2l = 42cm

3.5l = 42cm

l = 12cm

3/4(12cm) = 9cm

length = 12cm

width = 9cm

- Algebra -
**esrekae**, Wednesday, October 10, 2012 at 7:13pmwhat is the perimeter of the rectangle w/ length x+4/x+3 and width 2x-3/x+3

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