Question

Из пункта а в пункт в выехал велосипедист со скоростью 12 км ч через час навстречу ему из в в а выехал второй велосипедист со скоростью 14 км ч и встретился с первым через пол часа послу своего выезда чему равно растояние от а до б успеет ли первый велосепедист преодалеть это растояние за 2 часа

Answer 1

1 + 0.5=1.5(ч) ехал первый 1.5*12=18(км) проехал первый 14*0.5=7(км) проехал второй 18+7=25(км) расстояние 12*2 =24(км) первый за 2 часа 25-24=1(км ответ: расстояние-25 км, не успеет

Answer 2

12*1=12 км проехал первый за 1 час из12*1/2=6 км проехал первый за 1/2 часа12+6=18 км всего проехал первый14*1/2=7 км проехал второй18+7=25 км25:12=2 1/12 ч или 2 часа 5 минОтвет : 25 км расстояние от А до В ; 2 1/12 ч или 2 часа 5 мин

Answer 3

Problem Analysis

We have two cyclists traveling from point A to point B. The first cyclist is traveling at a speed of 12 km/h, and the second cyclist is traveling at a speed of 14 km/h. They meet each other after half an hour since the second cyclist started. We need to find the distance from point A to point B and determine if the first cyclist will be able to cover this distance in 2 hours.

Solution

To find the distance from point A to point B, we can use the formula: distance = speed × time.

Let's calculate the distance from point A to the meeting point using the speed and time of the second cyclist: - Speed of the second cyclist = 14 km/h - Time taken by the second cyclist = 0.5 hours

Using the formula, we can calculate the distance: distance_AB = speed × time = 14 km/h × 0.5 h = 7 km.

Now, let's calculate the time it would take for the first cyclist to cover this distance: - Speed of the first cyclist = 12 km/h - Distance from point A to point B = 7 km

Using the formula, we can calculate the time: time_AB = distance / speed = 7 km / 12 km/h ≈ 0.583 hours.

Since the first cyclist needs approximately 0.583 hours to cover the distance from point A to point B, which is less than 2 hours, the first cyclist will be able to cover this distance in 2 hours.

Answer

The distance from point A to point B is approximately 7 kilometers. The first cyclist will be able to cover this distance in 2 hours.

Please let me know if you need any further assistance!