Question

Помогите пожалуйста решить примеры и два уравнения ; 1) 53*3,72-2,72:17 2)(2,8*52-9,3):47 3)(x+2,4):8=2,3 4) (3,5-x)*6=1,2 заранее спасибо

Answer 1

1). 53*3.72-2,72:17= 197,16-0.16= 197
2). (145.6-9.3):47= 2.9
3). (х+2,4)=18.4
х= 18.4-2.4
х=16
4). 3,5-х= 0.2
х= 3.3

Answer 2

1. 53 * 3.72 - 2.72 : 17 = 197.16 - 0.16 = 197

2. (2.8 * 52 - 9.3) : 47 = (145.6 - 9.3) : 47 = 136.3 : 47 ≈ 2.899

3. (x + 2.4) : 8 = 2.3

To solve for x, we can multiply both sides of the equation by 8:

x + 2.4 = 18.4

Then we can isolate x by subtracting 2.4 from both sides:

x = 16

So the solution is x = 16.

4. (3.5 - x) * 6 = 1.2

To solve for x, we can first simplify the left side of the equation:

21 - 6x = 1.2

Then we can isolate x by subtracting 21 from both sides and dividing by -6:

x = (1.2 - 21) / -6 = 3.3

So the solution is x = 3.3.