You plan to go from Portland to Tucson. Let x be the distance in miles of any flight between Portland and Tucson.

Can you write an inequality that represents the mileage of any route between Portland and Tucson?

oi41 dot tinypic dot com/29dbjm0 dot jpg

I have 1129 >= x >= 973. Is this correct?

I like the x >= 973

But the other, not so much. Logically, you may be right as to a practical flight. But, any flight using the available data, which does not repeat a leg, includes the

Portland-SanDiego-Boise-Seattle-LasVegas-Tucson

connections.

It says that no more than one layover is allowed.

To answer the question, we need to consider the distance range between Portland and Tucson.

First, let's analyze the given diagram:

- The point labeled "Portland" is placed at 1129.
- The point labeled "Tucson" is placed at 973.

Since the distance between Portland and Tucson cannot be negative, we can eliminate any negative values.

So, the correct inequality should be:

0 <= x <= 1129

This inequality represents that the distance between Portland and Tucson can be any value greater than or equal to 0 and less than or equal to 1129 miles.

ah, now you start changing the rules. So, I guess you are correct.