Question

13) (x +9,14): 7,2 = 5;14) 2,2 -x :0,3=0,13;15) 5.6: (x + 1,6) = 0,08;​

Answer 1

Відповідь:

13) 26,86

14) 0,621

15) 68,4

Покрокове пояснення:

***

13) (x +9,14): 7,2 = 5

x + 9,14 = 5 * 7,2

x + 9,14 =  36

x = 36 - 9,14

x = 26,86

***

14) 2,2 -x :0,3=0,13

x : 0,3 = 2,2 - 0, 13

x : 0,3 = 2,07

x = 2,07 * 0,3

x = 0,621

***

15) 5.6: (x + 1,6) = 0,08

x +1,6 = 5,6 : 0,08

x + 1,6 = 70

x = 70 - 1,6

x = 68,4

***

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Answer 2

Ответ:

13) 26,86, 14) 6,9 15) 68,4

Пошаговое объяснение:

13) x+9.14=5*7.2

x=36-9.14

x=26,86

14) -х:0,3=0,13-2,2

х=-2,07/(-0,3)

х=6,9

15)х+1,6=5,6/0,08

х=70-1,6

х=68,4

Answer 3

It looks like you've provided a set of equations, but it's not clear what you want to do with them. If you could please clarify your question or what you'd like to solve for, I'd be happy to help. Are you looking to solve for the value of "x" in these equations? If so, please specify which equation you want to solve, and I'll provide the solution for that specific equation.

Answer 4

It appears that you've provided three equations, and it seems you want to solve for the variable x in each equation. Let's solve them one by one:

13. (x + 9) / 14 = 7 / 2

To solve for x in this equation, you can cross-multiply and then isolate x:

2(x + 9) = 7 * 14 2x + 18 = 98

Now, subtract 18 from both sides to isolate x:

2x = 98 - 18 2x = 80

Divide by 2 to find x:

x = 80 / 2 x = 40

So, the solution to equation 13 is x = 40.

14. 2 - x / 0.3 = 0.13

To solve for x in this equation, you can start by isolating the fraction:

2 - (x / 0.3) = 0.13

Now, subtract 2 from both sides:

-x / 0.3 = 0.13 - 2

Simplify:

-x / 0.3 = -1.87

To isolate x, you can multiply both sides by 0.3:

-x = -1.87 * 0.3

-x = -0.561

Now, divide by -1 to solve for x:

x = 0.561

So, the solution to equation 14 is x ≈ 0.561.

15. 5.6 / (x + 1.6) = 0.08

To solve for x in this equation, you can isolate the fraction:

5.6 / (x + 1.6) = 0.08

Now, cross-multiply:

5.6 = 0.08(x + 1.6)

Now, isolate x:

0.08(x + 1.6) = 5.6

0.08x + 0.128 = 5.6

Subtract 0.128 from both sides:

0.08x = 5.6 - 0.128

0.08x = 5.472

Now, divide by 0.08 to solve for x:

x = 5.472 / 0.08

x = 68.4

So, the solution to equation 15 is x = 68.4.