Question

1) 1,7*(5x-0,16)=0,238 2) 0,8*(100-0,04x)=8,64

Answer 1

Ответ:

1)  0,06

2) 2230

Пошаговое объяснение:

1) 1,7*(5x-0,16)=0,238

5x-0,16=0,14

5x=0,14+0,16

5x=0,3

x=0,06

2) 0,8*(100-0,04x)=8,64

100-0,04x=10,8

-0,04x=10,8-100

-0,04x=-89,2

x=2230

Answer 2

Let's solve the two equations:

1. $1.7 \cdot (5x - 0.16) = 0.238$

First, distribute 1.7 on the left side of the equation:

$8.5x - 0.272 = 0.238$

Now, isolate the variable by moving the constant term (-0.272) to the right side of the equation:

$8.5x = 0.238 + 0.272$

$8.5x = 0.51$

Now, divide both sides by 8.5 to solve for $x$:

$x = \frac{0.51}{8.5}$

$x = 0.06$

So, the solution to the first equation is $x = 0.06$.

2. $0.8 \cdot (100 - 0.04x) = 8.64$

First, distribute 0.8 on the left side of the equation:

$80 - 0.032x = 8.64$

Now, isolate the variable by moving the constant term (80) to the right side of the equation:

$-0.032x = 8.64 - 80$

$-0.032x = -71.36$

To solve for $x$, divide both sides by -0.032:

$x = \frac{-71.36}{-0.032}$

$x \approx 2230$

So, the solution to the second equation is $x \approx 2230$.