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6. За день туристы прошли 22 km. 3 часа они
шли со скоростью 4 km/h, а остальное рас-
стояние
со скоростью 5 km/h. Сколько вре-
мени туристы были в дороге?

Respuesta :

mhanifa

Answer:

  • 5 hours

Step-by-step explanation:

The question is

The tourists walked a distance of 22 km during a day.

The first 3 hours they walked with the speed of 4 km/h and the rest of the distance with the speed of 5 km/h.

What was the total time they walked.

----------------------

Let the time the tourists walked with 5 km/h is t, then we have the following equation for the total distance

  • 3*4 + t*5 = 22

Solve for t

  • 12 + 5t = 22
  • 5t = 22 - 12
  • 5t = 10
  • t = 2

The total time was

  • 3 + 2 = 5 hours

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