Question

The perimeter of a rectangle is less than 10 inches. The length is x and the width is x − 5. If the solution is x < 5, then the length is less than 5. Is this a viable solution?

1. viable
2. non-viable

Answer 1

Yes and No. The length must be less than 5.

But there is a practical limit to how the width is calculated.

So No.. This solution is not completely viable.

Step-by-step explanation:

If the length is almost 4, for example, the width must be between a bit more than 0 and less than or equal to 1. Using x<5 -5 to compute the width is not viable.