Answer:
The length is 273 and the width is 39
Explanation:
Given:
-The perimeter is 312 feet
-The length is seven times the width
Solution:
Let's say the width is x and the length is y.
So our equation is x + y = 312
But, 7x = y
If we substituted that into our equation, it would be:
7x + x = 312,
8x = 312
Divide by 8 on both sides,
x = 39
y = 273
So the length is 273 and the width is 39