SOLUTION: The length of a field is equal to 120m more than its width. If the pèrimètre (distance around) equals 560 m, find dimensions of this camp.

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Question 107475: The length of a field is equal to 120m more than its width. If the pèrimètre (distance around) equals
560 m, find dimensions of this camp.
Answer by alisttutors(8) About Me  (Show Source):
You can put this solution on YOUR website!
1) L=120m+W
2) 2L+2W=560m
Simplify equation 2:
2(L+W)=560m
2) L+W=280m
Substitute equation 1 into equation 2:
(120m+W)+ W=280m
2W=280m-120m
* W=80m
Substitute W:
L+80m=280m
* L=200m
check: 2(200m)+ 2(80m)=?560
yes, that checks