# algebra

posted by .

Two planes are 1,400 miles apart. They fly towards each other, one at 125 mph and the other at 175 mph. How long does it take the planes to pass each other (round to the nearest hundredth)?

• algebra -

d = 125t + 175t = 1400,
300t = 1400,
t = 1400 / 300 = 4.67 hrs.

## Similar Questions

1. ### math

13. If two planes leave the same airport at 1:00 PM, how many miles apart will they be at 3:00 PM if one travels directly north at 150 mph and the other travels directly west at 200 mph?

two cars are driving toward each other from opposite directions if one is driving 55mph the other is driving 60 mph and the cars are 500miles apart how long before they pass each other?
3. ### math

Two cars are driving toward each other from opposite directions. If one is driving 55 mph, the other is driving 60 mph and the cars are 500 miles apart, how long will it be before they pass each other?
4. ### algebra

Two cars are driving toward each other from opposite directions. If one is driving 55 mph, the other is driving 60 mph and the cars are 500 miles apart, how long will it be before they pass each other?
5. ### Algebra

If two planes leave the same airport at 1:00 PM, how many miles apart will they be at 3:00 PM if one travels directly north at 150 mph and the other travels directly west at 200 mph?
6. ### ALGEBRA

TWO PLANES WHICH APART, FLY TOWARDS EACH OTHER. THEIR SPEEDS DIFFER BY 60 MILES PER HOUR. THEY PASS EACH OTHER AFTER 5 HOURS. FIND THEIR SPEEDS.
7. ### algebra

two planes which are 1695 miles apart fly towards each other,their speeds differ by 65 mph,if they pass each other in 3 hours, what is the speed of each
8. ### math

two trains are at stations that are 800 miles apart. if they start traveling toward each other at the same time one averaging 67 mph and the other averaging 53 mph in how many hours will they pass each other?
9. ### Algebra

Two planes, which are 2660 miles apart, fly toward each other. Their speeds differ by 65 mph. If they pass each other in 4 hours, what is the speed of each?
10. ### Math

Two planes start at 11AM from two airports 1800 miles apart, and fly toward each other at average rates of 200 and 250 miles per hour. the time at which they pass each other will be?

More Similar Questions