if the speed of the prop is x, then the jet is 4x.
Since distance = speed * time, we have
4x*2 + x * 1/2 = 850
Elenore made an 850 mile trip east. She traveled 2 hours by jet and 30 minutes by a private propeller plane. If the speed of the jet was four times the speed of the propeller plane, what was the speed of the jet?
2 answers
339