SOLUTION: the difference between the length and width of a rectangle is 7 centimeters. what is the dimensions of rectangle if its perimeter is 50 centimers

Algebra ->  Customizable Word Problem Solvers  -> Geometry -> SOLUTION: the difference between the length and width of a rectangle is 7 centimeters. what is the dimensions of rectangle if its perimeter is 50 centimers      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 272187: the difference between the length and width of a rectangle is 7 centimeters. what is the dimensions of rectangle if its perimeter is 50 centimers
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
L = length
W = width
P = perimeter = 50
P = 2(L+W) = perimeter formula = 2L + 2W
L - W = 7 :: given
so
L = W+7
.
substituting
2(W+7) + 2W = 50
2W + 14 + 2W = 50
4W = 36
W = 9
.
L=W+7 = 9+7 = 16
.
checking
2L + 2W = 2(16) + 2(9) = 32+18 = 50
.
Answer:
L = 16
W = 9