SOLUTION: The length of a rectangle is 3 inches more than the width. The perimeter of the rectange is 24 inches. a.define variables b.write the expression for the length in terms of the

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Question 103615: The length of a rectangle is 3 inches more than the width. The perimeter of the rectange is 24 inches.
a.define variables
b.write the expression for the length in terms of the width
c.substitute what you know into the equation. Be sure you only have one variable
d.what is the length of the rectangle?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The length of a rectangle is 3 inches more than the width. The perimeter of the rectange is 24 inches.
a.) define variables
L-length, W-width, P-perimeter
b.) write the expression for the length in terms of the width
L=3+W
c.) substitute what you know into the equation. Be sure you only have one variable
The step you're missing is the equation of the perimeter of a rectangle
P=2L%2B2W=24
2%283%2BW%29%2B2W=24
2%283%29%2B2%28W%29%2B2W=24
6%2B4W=24
6-6%2B4W=24-6
4W=18
W=18%2F4=9%2F2
W=4.5 inches
d.) what is the length of the rectangle?
L=3%2B9%2F2=6%2F2%2B9%2F2=15%2F2
L=7.5 inches


write the expression for the length in terms of the width
c.substitute what you know into the equation. Be sure you only have one variable
d.what is the length of the rectangle?