A cargo plane and a private jet leave at the same time from the same airport, traveling in opposite directions. The jet travels twice the speed of the cargo plane. They are 2400 miles apart in 4 hours. Find the speed of the cargo plane and jet plane.

A. Write an equation to represent this situation.

B. Show/explain your steps in solving your equation from Part A.

C. State the speed of the cargo plane and the speed of the jet plane.

Make sure to clearly label your answers and to follow directions or you will not receive full credit.

Question

A cargo plane and a private jet leave at the same time from the same airport, traveling in opposite directions.  The jet travels twice the speed of the cargo plane.  They are 2400 miles apart in 4 hours.  Find the speed of the cargo plane and jet plane.
 
A.  Write an equation to represent this situation.
 
B.  Show/explain your steps in solving your equation from Part A.
 
C.  State the speed of the cargo plane and the speed of the jet plane.
 
Make sure to clearly label your answers and to follow directions or you will not receive full credit.

anonymous · Answer

r t = d, rate times time equals distance.
Let j and c be the speed of the jet and cargo plane respectively.
Solve the following two equations for j and c.
{j 4 + c 4 = 2400, j = 2 c}

1dfanatic · Answer

what do i do for b?

anonymous · Answer

{ c = 200, j = 400 }
Thank you for the medal.