2 boats left the pier in opposite directions at the same time. In 2 hours they were at a distance of 128 km

2 boats left the pier in opposite directions at the same time. In 2 hours they were at a distance of 128 km from each other. The speed of the first boat is 35 km / h. Find the speed of the second boat

Let us determine the distance covered by the first boat in two hours, if it is known that its speed was 35 km / h.
35 × 2 = 70 kilometers.
Let us determine what distance the second boat has traveled during this time, if it is known that the boats have moved 128 kilometers away from each other.
128 – 70 = 58 kilometers.
Let’s determine the speed of the second boat if it covered 58 kilometers in two hours.
58: 2 = 29 kilometers per hour.
Answer: the speed of the second boat was 29 kilometers per hour.