Question

Расстояние между деревнями Васильево и Петушково 140 км.Из Васильево в Петушково выехал мотоциклист со скоростью 28 км/ч.Напишите формулу,выражающую расстояние sот мотоциклиста до деревни Петушково через t часов после выезда.По формуле найдите,через сколько часов после выезда мотоциклист будет находиться на расстоянии 56 км. от Петушково.

Answer 1

S=140-28t - формула

56=140-28t
28t=140-56
28t=84
t=3 (ч)

Answer 2

Formula for calculating the distance traveled by the motorcyclist

To calculate the distance traveled by the motorcyclist from Vasilyevo to Petushkovo after t hours, we can use the formula:

Distance = Speed x Time

In this case, the speed of the motorcyclist is 28 km/h, and the time is t hours. Therefore, the formula can be written as:

Distance = 28t

Finding the time it takes for the motorcyclist to be 56 km away from Petushkovo

To find the time it takes for the motorcyclist to be 56 km away from Petushkovo, we can set up the equation:

Distance = 56 km

Substituting the formula for distance, we have:

28t = 56

To solve for t, we divide both sides of the equation by 28:

t = 56 / 28

Simplifying the equation, we find:

t = 2

Therefore, the motorcyclist will be 56 km away from Petushkovo after 2 hours.

Please let me know if there's anything else I can help you with!