Saturday

April 18, 2015

April 18, 2015

Posted by **Julia** on Sunday, October 26, 2008 at 2:49pm.

"Two planes left the Chicago airport at the same time four hours ago. One is 40 miles per hour faster than the other one, and they are 6600 miles apart. What is the rate of each plane?"

I am not the best at distance problems like this. And it's an extra credit problem, which I really need. So can someone please help me?

I know it would be 6600=4r+40 or something...

- Algebra -
**Damon**, Sunday, October 26, 2008 at 3:00pmspeed 1 = r

speed 2 = (r+40)

assume opposite directions

6600 = 4 (r + 40) + 4 r

6600 = 4 r + 160 + 4r

8 r = 6440

r = 805

r+40 = 845

**Answer this Question**

**Related Questions**

math - two airplanes left the same airport traveling in opposite direction. if ...

math - Two planes depart from the same airport at the same time. One hour later ...

maths - Two planes take off from the same airport at the same time. One plane ...

Algebra 1 - Hello, could someone help me solve/show the following algebra ...

MATH 112 - two planes leave an airport at the same time. Their speeds are 320 ...

Algebra 2 - Two sailboats are 9.8 miles apart and sailing toward each other. The...

Trig - Two planes take off at the same time from an airport. The first plane is ...

Calculus - An air traffic controller spots 2 planes at the same altitude ...

trig - Two Airplanes leave an airport at the same time on different runways. One...

math - Two planes took off from a Chicago airport flying in opposite directions...