. What do you know about each leg of the trip? How does this relate to the information you want to find? Select all that apply. I know that the rate is increased for one direction of travel and decreased for another direction of travel.

I know that the rate remains constant for each direction of travel.

Each rate change affects the leg of its corresponding trip.

The sum of the two times is equal to the total time.

The product of the two times is equal to the total time.

Each leg of the trip has a constant rate.

2. To answer the question, think about the strategy and tool you would use along with all the information you have. What answer do you get?

The speed of the plane is about miles per hour.

3. Does your answer make sense in the context of the situation? How do you know? Select the correct words or phrases to complete the sentence.

Yes, the answer is reasonable. If you traveled at a rate of (102, 510) for (5, 10) you would travel a distance of (1020, 2550) , which is reasonably close to

(half the distance, the distance).