Question

При скорости самолёта 840 км/ч перелёт 8 ч. С какой скоростью должен лететь самолёт,чтобы пролететь это же расстояние за 7 ч?

Answer 1

S=v*t
1.t=8 V=840 s=6720 км
2. T=7 v=? S= 6720
V= s/t
V= 6720/7=960км/ч

Answer 2

Calculation of Speed

To calculate the speed at which the plane should fly to cover the same distance in 7 hours instead of 8 hours, we can use the formula:

Speed = Distance / Time

Given that the distance remains the same and the time changes from 8 hours to 7 hours, we can substitute these values into the formula:

Speed = Distance / 7

Now, let's calculate the speed:

Speed = 840 km/h / 7

Using simple division, we find that the speed at which the plane should fly to cover the same distance in 7 hours is 120 km/h.