At maximum speed, an airplane travels
2100 miles against the wind in 6 hours.
Flying with the wind, the plane can
travel the same distance in 4 hours.
Let x be the maximum speed of the plane and y
be the speed of the wind. What is the speed of
the plane with no wind?
Enter the correct answer.

437.5 mph

Step-by-step explanation:

The first step is to convert these speeds into unit rates. 2100/6=350 miles per hour, and 2100/4=525 miles per hour. If you average these out, you will find the average speed of the plane without the wind. (525+350)/2=437.5 mph. Hope this helps!

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