Posted by **Carol** on Sunday, November 13, 2011 at 1:10am.

Question is: What is the algebraic equation to determine when they will meet?

For the following information, I understand 5(x+y) = 3000 for 1st plane & 10(x-y) = 3000 for 2nd plane.

When an airplane flies with a given wind, it can travel 3000 km in 5hrs. When the same airplane flies in the opposite direction against the wind it takes 10hrs to fly the same distance. Find the speed of the plane in still air and the speed of the wind.

- Pre-Algebra -
**Henry**, Monday, November 14, 2011 at 6:05pm
Vp + Vw = 3000km/5h = 600km/h.

Vp - Vw = 3000km/10h = 300km/h.

Add the 2 Eqs:

Eq1: Vp + Vw = 600.

Eq2: Vp - Vw = 300.

Sum: 2Vp = 900,

Vp = 450km/h = Speed in still air

In Eq1, substitute 450 for Vp:

450 + Vw = 600,

Vw = 150km/h. = Speed of wind.

## Answer this Question

## Related Questions

- Pre-Algebra - Question is: What is the algebraic equation to determine when they...
- stats - A bakery stated that the average number of breads sold daily is 3000. An...
- Math - 1st plane flew at 600km/h 15 minutes later..... 2nd plane flew at 700km/h...
- algebra - (a) of 3000 she makes 55 an hour (h) and how many hours will it take ...
- Geometry - 4.Determine which point does not lie on the graph of the line y=x-3 a...
- stats - 8-A bakery stated that the average number of breads sold daily is 3000. ...
- Geometry - I need help with these problems: 11. The 2 captains of the school ...
- calculus - An airplane is cruising at 340 km/h at an altitude of 4000 m. If the ...
- math: Calculus - Algebraic Vectors - A light plane is travelling at 175 km/h on ...
- maths - I've to create a scatter plot using the following coordinates: (0,15.0...

More Related Questions