Solving Linear Equations: 2 Planes from LAX - Cbarker1

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SUMMARY

The discussion focuses on solving a system of linear equations involving two planes departing from Los Angeles International Airport. The first plane's speed is represented by variable x, while the second plane, which departs half an hour later, travels at a speed of x + 80 kilometers per hour. After two hours of flight, the total distance between the two planes is 3200 kilometers. The problem requires setting up and solving the equations to find the airspeed of each plane.

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cbarker1
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Dear Everyone,

I have some help setting up a system of linear equation. The problem states,
Two planes start from Los Angeles International Airport and fly in opposition directions. The second plane starts $\frac{1}{2}$ hour after the first plane, but its speed is 80 kilometers per hour faster. Find the airspeed of each plane if 2 hours after the first plane departs, the planes are 3200 kilometers apart.

I know the x is the first plane and y is the second plane.

Thank you

Cbarker1
 
Last edited:
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Cbarker1 said:
Dear Everyone,

I have some help setting up a system of linear equation. The problem states,
Two planes start from Los Angeles International Airport and fly in opposition directions. The second plane starts $\frac{1}{2}$


$\frac12$ what? What are the units?

after the first plane, but its speed is 80 kilometers per hour faster. Find the airspeed of each plane if 2 hours after the first plane departs, the planes are 3200 kilometers apart.
I know the x is the first plane and y is the second plane.

Thank you

Cbarker1
 

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