If one plane is flying at 40 mph while another is flying at 100 mph, and they are 200 miles apart and flying directly towards each other, how long will it take them to me

If one plane is flying at 40 mph while another is flying at 100 mph, and they are 200 miles apart and flying directly towards each other, how long will it take them to meet?

1st Plane DATA:

rate = 40 mph; time = t hrs ; distance = 40t miles

2nd Plane DATA:

rate = 100 mph ; time = t hrs ; distance = 100t miles

Equation:

dist + dist = 200 miles

40t + 100t = 200 miles

140t = 200 miles

t = 1.429 hrs = 1hr 25.7 min = 1hr 25min 43sec

Cheers, Amos

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right

step-by-step explanation:

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