Question

Разделите число 81 в отношении 4:5. Решение.

Answer 1

Ответ был правильным на самом деле)
81/(4+5) = 81/9 = 9 - 1 часть
4*9 = 36
5*9 = 45
Ответ: 36 к 45.

Answer 2

Division of 81 in the ratio 4:5

To divide the number 81 in the ratio 4:5, we need to find the two parts that make up the whole number 81 in the given ratio.

Let's denote the two parts as x and y, where x is the part corresponding to the ratio 4 and y is the part corresponding to the ratio 5.

To find the values of x and y, we can set up the following equation:

x/y = 4/5

To solve this equation, we can cross-multiply:

5x = 4y

Now, we can substitute the value of y in terms of x:

5x = 4(81 - x)

Simplifying the equation:

5x = 324 - 4x

Combining like terms:

9x = 324

Dividing both sides by 9:

x = 36

Now, we can find the value of y by substituting the value of x back into one of the original equations:

y = 81 - x y = 81 - 36 y = 45

Therefore, the two parts that divide 81 in the ratio 4:5 are 36 and 45.

Answer: The number 81 divided in the ratio 4:5 results in two parts: 36 and 45.