Question

3568:(80-8*a)=1115:5 помогите пожалуста

Answer 1

$3~568:\underline{(80-8a)}=1~115:5$

Подчеркнут делитель, чтобы его найти, выполним деление в правой части уравнения и делимое разделим на полученное частное.

$3~568:(80-8a)=223\\\\80-8a=3~568:223\\\\80-\underline{8a}=16$

Чтобы найти вычитаемое из уменьшаемого вычитаем разность:

$80-16=8a\\\\64=8a\\\\8a=64\\\\a=64:8\\\\a=8.$

ПРОВЕРКА:

$3~568 : (80-8\cdot8)=1~115:5\\\3~568 : (80 - 64) = 223\\3~568 : 16 = 223\\223 = 223.$

Answer 2

To solve the equation 3568:(80-8*a) = 1115:5, we need to find the value of 'a' that satisfies the equation. Let's break down the steps to solve it:

Step 1: Simplify the equation

We can simplify the equation by performing the division on both sides. Dividing by a number is the same as multiplying by its reciprocal. So, the equation becomes:

3568 / (80 - 8*a) = 1115 / 5

Step 2: Solve for 'a'

To solve for 'a', we can cross-multiply. Cross-multiplying means multiplying the numerator of the left side with the denominator of the right side, and vice versa. The equation becomes:

3568 * 5 = 1115 * (80 - 8*a)

Step 3: Simplify and isolate 'a'

Now, let's simplify the equation further:

17840 = 89200 - 8920*a

To isolate 'a', we need to move the terms involving 'a' to one side of the equation. Let's subtract 89200 from both sides:

17840 - 89200 = -8920*a

Simplifying further:

-71360 = -8920*a

Step 4: Solve for 'a'

To solve for 'a', we need to isolate it. We can do this by dividing both sides of the equation by -8920:

-71360 / -8920 = a

Simplifying:

a = 8

Therefore, the value of 'a' that satisfies the equation 3568:(80-8*a) = 1115:5 is a = 8.

I hope this helps! Let me know if you have any further questions.