Question

1) 0,1.(2x + 5,2) = 0,77;2) 0,01. (10 x + 1,3) = 0,083;​

Answer 1

Ответ: х = 1,25, х = 0,7

Пошаговое объяснение:

1) 0,1(2x + 5,2) = 0,77

раскроем скобки:

0,2х + 0,52 = 0,77

0,2х = 0,77 - 0,52

0,2х = 0,25

х = 0,25 / 0,2

х = 1,25

2) 0,01(10x + 1,3) = 0,083

раскроем скобки:

0,1х + 0,013 = 0,083

0,1х = 0,083 - 0,013

0,1х = 0,07

х = 0,07 / 0,1

х = 0,7

Answer 2

It looks like you've provided two mathematical equations, and it appears you'd like to solve for the variable 'x' in each equation. Let's work on these one at a time:

1. 0.1(2x + 5.2) = 0.77

First, let's isolate the term with 'x' on one side of the equation:

0.1(2x + 5.2) = 0.77

Now, we can distribute 0.1 to both terms inside the parentheses:

0.1 * 2x + 0.1 * 5.2 = 0.77

0.2x + 0.52 = 0.77

Next, subtract 0.52 from both sides to isolate the term with 'x' on the left side:

0.2x = 0.77 - 0.52

0.2x = 0.25

Now, divide both sides by 0.2 to solve for 'x':

x = 0.25 / 0.2

x = 1.25

So, the solution to the first equation is x = 1.25.

2. 0.01(10x + 1.3) = 0.083

First, let's isolate the term with 'x' on one side of the equation:

0.01(10x + 1.3) = 0.083

Now, we can distribute 0.01 to both terms inside the parentheses:

0.01 * 10x + 0.01 * 1.3 = 0.083

0.1x + 0.013 = 0.083

Next, subtract 0.013 from both sides to isolate the term with 'x' on the left side:

0.1x = 0.083 - 0.013

0.1x = 0.07

Now, divide both sides by 0.1 to solve for 'x':

x = 0.07 / 0.1

x = 0.7

So, the solution to the second equation is x = 0.7.