Question

mark is riding on plane that can fly 490 miles with a tailwind of 35 mph im the same amount of time it can fly 340 miles against a headwind of 25 mph what is the speed of the plane ?

Answer 1

135

Explanation:

this is going to be in miles per hour. ... of 20 mph in the same time that it can fly 350 miles against a tailwind of 20 mph.