SOLUTION: Airplane A travels 2800 km at a certain speed. Plane B travels 2000 km at a speed 50 km/hr faster than Plane A in 3 hrs less time. Find the speed of each plane
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Question 350638: Airplane A travels 2800 km at a certain speed. Plane B travels 2000 km at a speed 50 km/hr faster than Plane A in 3 hrs less time. Find the speed of each plane
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Rate*Time=Distance
.
.
.
For Plane A,
1.
.
.
For Plane B,
2.
.
.
From eq. 1,
Substitute into eq. 2,
Use the quadratic formula,
Use only the positive answer.
kph
.
.
.
kph
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