Question

1) 3x 7-18; 2) -8x < 32; 3) бу 16; 4) 6,5y > 13; 5) -8x 724; 6) 7, 5x < 30. 941.

Answer 1

Ответ:

1) 3x≥18

x≥6 [6;+∞)

2) -8x≤32

x≥-4

[4;+∞)

3)5y≥16  

y≥16/5

[16/5;+∞)

4)y>2

(2;+∞)

5)-8x≥24

x≤3

(-∞;3]

6)7,5x≤30

x≤4

(-∞;4]

Answer 2

It seems like you've provided a list of equations and inequalities. Let's go through each one:

1. 3x + 7 = 18; This equation can be solved for x by isolating x on one side of the equation: 3x = 18 - 7 3x = 11 x = 11/3 or x = 3.67 (rounded to two decimal places)

2. -8x < 32; To solve this inequality for x, divide both sides by -8. When dividing by a negative number, remember to reverse the inequality sign: x > 32 / -8 x > -4

3. бу = 16; I'm not sure what you mean by "бу." It appears to be a non-standard variable or symbol. If you can provide more context or clarification, I'd be happy to help.

4. 6.5y > 13; To solve this inequality for y, divide both sides by 6.5: y > 13 / 6.5 y > 2

5. -8x = 724; This equation can be solved for x by isolating x on one side of the equation: -8x = 724 Divide both sides by -8 to find x: x = 724 / -8 x = -90.5

6. 7.5x < 30.941; To solve this inequality for x, divide both sides by 7.5: x < 30.941 / 7.5 x < 4.125 (rounded to three decimal places)

Please note that in some cases, I rounded the answers to two or three decimal places for simplicity. If you need more precise answers or have any further questions, please let me know.