Question

A dog kennel owner has 121 ft of fencing to enclose a rectangular dog run. She wants it to

be 5 times longer than it is wide. Find the dimensions of the dog run.

Answer 1

605/12 ft by 121/12 ft

Explanation:

So, the dimensions of the dog run would be 5x as the length and x as the width.

The perimeter of this dog run would therefore be :

5x + 5x + x + x = 12x

From here, we know that 12x = 121 ft, so x = 121/12 ft

so the final dimensions of the dog run would be 605/12 ft by 121/12 ft