Question

Корабль в первый день проплыл d км,во ворой день в 2 раза больше чем в первый день а в третий на 40 км меньше чем во второй день.Сколько километров проплыл корабль за все 3 дня.

Answer 1

Первый день-d(км)
второй день-в 2 раза больше, чем в первый
в третий день-на 40(км) меньше чем во второй
сколько всего?
составим уравнение
d+(d×2)+(d×2-40)
можно заменить d
d=30
30+(30×2)+(30×2-40)=30+60+20=110
надеюсь помогла)

Answer 2

D+2d+(2d-40)=5d-40(км) проплыл за 3 дня

Answer 3

Calculation of the Distance Traveled by the Ship

To calculate the total distance traveled by the ship over the course of three days, we need to add up the distances traveled on each day.

Let's break down the information given:

- On the first day, the ship traveled d kilometers. - On the second day, the ship traveled twice as much as on the first day, so it traveled 2d kilometers. - On the third day, the ship traveled 40 kilometers less than on the second day, so it traveled 2d - 40 kilometers.

To find the total distance traveled, we add up the distances traveled on each day:

Total distance = distance on day 1 + distance on day 2 + distance on day 3

Total distance = d + 2d + (2d - 40)

Simplifying the equation:

Total distance = 5d - 40.

Therefore, the ship traveled 5d - 40 kilometers in total over the course of three days.

Please note that the value of d is not provided in the question, so we cannot determine the exact distance traveled without that information.