Question

За 1 1/2 ч технолог прошел 42 км. за какое время он пройдет 70км?

Answer 1

42: 1 1/2=42*2/3=28 км/ч скорость
70: 28=35/14=5/2=2 1/2=2,5 ч 

Answer 2

1) найдем скорость
42:1 ,5=28 км/час
2)Найдем время 70:28=2,5 часа

Answer 3

To calculate the time it takes for the technologist to cover 70 km, we can use the concept of speed. The technologist's speed can be calculated by dividing the distance covered by the time taken.

Given information: Distance covered: 42 km Time taken: 1 1/2 hours (1 hour and 30 minutes)

Step 1: Calculate the speed of the technologist Speed = Distance / Time Speed = 42 km / 1.5 hours Speed = 28 km/h

Step 2: Calculate the time to cover 70 km Time = Distance / Speed Time = 70 km / 28 km/h Time = 2.5 hours

So, the technologist will take 2.5 hours to cover 70 km.