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Question

anonymous · Answer

Ms. Soar flew 220 mi in 1.6 h. She then landed at the Aspen Airport to visit a friend. In the second portion of her trip, Ms. Soar flew 312 mi, which took 2.2 h.

 

What was her plane’s average speed for the entire trip?

anonymous · Answer

Quick please!

563blackghost · Answer

First we would find the individual speeds per hour for the first and second trip...

So to find the unit rate for the first trip we divide the total miles over hours...

$\Huge{\frac{220mi}{1.6h}=unit~rate}$

We do the same for the second...

$\Huge{\frac{312mi}{2.2h}=unit~rate}$

What would be the unit rate for the first half and the second half of the trip?


By the way what you find is not the final answer...

anonymous · Answer

Do we add both of the unit rates to get the answer?

563blackghost · Answer

Yes we would add both and then divide by 2...

anonymous · Answer

Okay

anonymous · Answer

I got 139.659091

563blackghost · Answer

Well it should only be 139.65 but yea that is the right answer....so she travels at an average speed of 139.65 miles per hour...

anonymous · Answer

Thanks!

563blackghost · Answer

np ^^