Question

Cобственная скорость моторной лодки 12,6 км/ч скорость течения 1,8 км/ч. Сначала лодка плыла 0,5 ч против течения реки, а затем 2,5 ч по озеру.Какой путь проплыла лодка за все это время.

Answer 1

12.6-1.8=10.8 (км\ч) - скорость движения лодки против течения реки
10.8х0.5=5.4 (км) - по реке
12.6х2.5=31.5 (км) - по озеру
31.5+5.4=36.9 (км) - всего

Answer 2

12,6-1,8=10,8*0,5=11,7
12,6+1,8*2,5=17,1
11,7+17,1=28,8  скорее всего а так я не понял ПО озеру(

Answer 3

Calculation of the Distance Traveled by the Boat

To calculate the distance traveled by the boat, we need to consider the time spent traveling against the current and the time spent traveling on the lake.

Given: - Boat's own speed: 12.6 km/h - Speed of the current: 1.8 km/h - Time spent traveling against the current: 0.5 hours - Time spent traveling on the lake: 2.5 hours

To calculate the distance traveled against the current, we can use the formula: distance = speed × time.

The distance traveled against the current is: 12.6 km/h × 0.5 hours = 6.3 km.

To calculate the distance traveled on the lake, we can use the same formula: distance = speed × time.

The distance traveled on the lake is: (12.6 km/h + 1.8 km/h) × 2.5 hours = 36 km.

Therefore, the total distance traveled by the boat is the sum of the distances traveled against the current and on the lake: 6.3 km + 36 km = 42.3 km.

Answer

The boat traveled a total distance of 42.3 km during the given time, traveling against the current for 0.5 hours and on the lake for 2.5 hours.