The perimeter of a rectangular fence must be at least

Question

The perimeter of a rectangular fence must be at least 8080
feet and no more than 200200
feet. If the width of the fence is 3030
feet, what is the range of values allowed for the length of the fence

Answer 1

Use this conjunction inequality as a guideline:

 

minimum perimeter ≤ 2(length + width) ≤ maximum perimeter 

 

and solve for your length.