Question

If one plane is flying 40 mph and another plane is flying 100 mph, and they

are 200 miles apart and flying directly toward each other, in how long will the planes
meet2

Answer 1

i think 60 miles

Explanation:

I just added the 100+40 then

200-140

Answer 2

1 3/7 hours

Explanation:

The planes are closing the 200 mile separation distance at a rate of (40 +100) = 140 miles per hour. The time it takes for that distance to be closed is ...

time = distance/speed

time = (200 mi)/(140 mi/h) = 200/140 h = 10/7 h = 1 3/7 h

The planes will meet after 1 3/7 hours, about 1 hour 25 minutes 43 seconds.