Question

ПОМОГИТЕ ПОЖАЛУЙСТА.1)В первой канистре на 4,8 л бензина больше, чем во второй, а в двух канистрах вместе 60 л бензина. Сколько литров бензина в первой канистре? 2) На первом складе на 9,8 т угля меньше, чем на втором, а в двух складах вместе 100 т угля. Сколько тонн угля на первом складе?

Answer 1

ЗАДАЧА 1.
1) (60-4,8):2=27,6 (л) - во второй канистре.
2) 27,6+4,8=32,4 (л) - в первой канистре
Ответ: 32,4 литра

ЗАДАЧА 2
1)(100-9,8):2=45,1 (т) - на первом складе
2) 45,1+9,8=54,9 (т.) - на втором складе
Ответ: 45,1 тонна

Answer 2

Question 1: В первой канистре на 4,8 л бензина больше, чем во второй, а в двух канистрах вместе 60 л бензина. Сколько литров бензина в первой канистре?

To find the number of liters of gasoline in the first canister, we can set up a system of equations based on the given information.

Let's assume the amount of gasoline in the second canister is x liters. According to the problem, the first canister has 4.8 liters more than the second canister. So, the amount of gasoline in the first canister would be (x + 4.8) liters.

The total amount of gasoline in both canisters is 60 liters. Therefore, we can write the equation:

(x + 4.8) + x = 60

Simplifying the equation:

2x + 4.8 = 60

Subtracting 4.8 from both sides:

2x = 55.2

Dividing both sides by 2:

x = 27.6

Therefore, the second canister contains 27.6 liters of gasoline. To find the amount of gasoline in the first canister, we add 4.8 liters to this:

27.6 + 4.8 = 32.4

There are 32.4 liters of gasoline in the first canister.

Question 2: На первом складе на 9,8 т угля меньше, чем на втором, а в двух складах вместе 100 т угля. Сколько тонн угля на первом складе?

Similar to the previous question, we can set up a system of equations to find the number of tons of coal on the first warehouse.

Let's assume the amount of coal on the second warehouse is y tons. According to the problem, the first warehouse has 9.8 tons less than the second warehouse. So, the amount of coal on the first warehouse would be (y - 9.8) tons.

The total amount of coal in both warehouses is 100 tons. Therefore, we can write the equation:

(y - 9.8) + y = 100

Simplifying the equation:

2y - 9.8 = 100

Adding 9.8 to both sides:

2y = 109.8

Dividing both sides by 2:

y = 54.9

Therefore, the second warehouse contains 54.9 tons of coal. To find the amount of coal on the first warehouse, we subtract 9.8 tons from this:

54.9 - 9.8 = 45.1

There are 45.1 tons of coal on the first warehouse.