Wednesday

September 17, 2014

September 17, 2014

Posted by **jaime** on Sunday, October 28, 2012 at 11:32pm.

- algebra -
**jaime**, Monday, October 29, 2012 at 12:11amtraveling fromchicago to kansas city is a 540 mile trip. A small plane, facing a headwind (going against the wind), took 9 hours to get to kansas city. on the return trip to chicago the plane had a tailwind ( going with the wind) and the trip took only 6 hours. What was the average plane speed and the average wind speed?

- algebra -
**Reiny**, Monday, October 29, 2012 at 8:47amPlease don't post a new question as a response to your own post. Often it would be overlooked since tutors think it has been answered.

1.

longer piece ---- x

shorter piece ----(2/3)x

x+ 2x/3 = 40

3x + 2x = 120

5x=120

x=24

long piece is 24 , short piece is 16

2. speed of plane in still air --- x mph

speed of wind ---- y mph

9(x-y) = 540 ---> x-y = 60

6(x+y) = 540 ---> x+y = 90

add them:

2x = 150

x = 75

speed of plane: 75 mph

speed of wind : 15 mph

- algebra -
**your mama**, Thursday, January 24, 2013 at 12:21pmblack people eat chicken

**Answer this Question**

**Related Questions**

Algebra - A board 5 feet long is cut into two pieces such that the length of one...

Agebra - A 12ft. board is cut into two pieces so that one piece is 8 ft. longer ...

math - a 17 foot piece of string is cut into two pieces so that the longer piece...

algebra - a piece of wire that is 58cm long is cut into three pieces. the ...

geometry - a 10-inch-long board is cut into two pieces that have lengths in the ...

math - Yuri has a board that is 98 in. long. He wishes to cut the board into two...

Mathematics - A drinking straw of length 21 cm is cut into 3 pieces the length ...

Math - A 51 meter rope is cut into 2 pieces so that one piece is 6 meters longer...

math - An electrician cuts a 26ft piece of wire into two pieces. One piece is ...

math - a piece of rope 3m 66 m long was cut into 2 pieces. the longer piece was ...