Question

Помогите пожалуйста. Для перевозки 35т угля выделили несколько грузовиков. На каждый грузовик погрузили по4 т угля ,после чего осталось перевезти еще 7т угля. Сколько машин потребывалось?

Answer 1

35-7=28т -перевезли           28:4=7 машин

Answer 2

(35-7):4=7 машин было всего

Answer 3

Problem Analysis

We are given that 35 tons of coal need to be transported using several trucks. Each truck can carry 4 tons of coal, and there are 7 tons of coal remaining to be transported. We need to determine how many trucks are required to transport the remaining coal.

Solution

To find the number of trucks required, we can divide the remaining coal by the capacity of each truck.

Let's calculate the number of trucks required:

1. Calculate the remaining coal: 35 tons - 4 tons * number of trucks. 2. Set up an equation: 35 - 4x = 7, where x represents the number of trucks required. 3. Solve the equation for x.

Calculation

Let's solve the equation to find the number of trucks required:

35 - 4x = 7

Subtract 35 from both sides:

-4x = 7 - 35 -4x = -28

Divide both sides by -4:

x = -28 / -4 x = 7

Answer

Therefore, 7 trucks are required to transport the remaining 7 tons of coal.

Please let me know if I can help you with anything else.