Question

За два дня мотоциклист проехал 415 км. В первый день он ехал 4 часа , а во второй день 5 часов причем со скоростью на 20 км/ч больше, чем в первый день. Найдите скорость мотоциклиста в каждый день.

Answer 1

1)X=скорость в первый день
(4+5)•(20+x+x)
9•21x=415
189x=415
X=415:189
X=415/189(или 2 целых 37/189)-В первый день
2) 2цел. 37/189+20=22цел. 37/189(км/ч)- во второй день

Answer 2

Calculation of the Motorcyclist's Speed

To find the speed of the motorcyclist on each day, we can use the formula:

Speed = Distance / Time

Let's calculate the speed for each day:

1. First Day: - Distance: 415 km - Time: 4 hours - Speed = 415 km / 4 hours = 103.75 km/h 2. Second Day: - Distance: 415 km - Time: 5 hours - Speed is 20 km/h more than the first day's speed, so the speed on the second day is: - Speed = (103.75 km/h + 20 km/h) = 123.75 km/h Therefore, the speed of the motorcyclist on the first day was 103.75 km/h, and on the second day, it was 123.75 km/h.