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3 years ago

The work of a student to solve the equation 2(3x − 4) = 8 + 2x + 4 is shown below:

Mathematics

2 answers:

Ray Of Light [21]3 years ago

8 0

Answer:

B. Step 2; 6x - 8 = 12x + 2x

Step-by-step explanation:

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Katarina [22]3 years ago

8 0

Answer:

B. Step 2; 6x - 8 = 12x + 2x

Step-by-step explanation:

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Which of the following is the correct graph of the solution to the inequality −18 > −5x + 2 ≥ −48?

monitta

Answer:

Option D. A number line with an open circle on 4 with shading to the right and a closed circle on 10 with shading to the left

Step-by-step explanation:

we have

$-18 > -5x+2 \geq -48$

Divide the compound inequality into two inequalities

$-5x+2 \geq -48$ -----> inequality A

$-5x \geq -48-2$

$-5x \geq -50$

Multiply by -1 both sides

$5x \leq 50$

Divide by 5 both sides

$x \leq 10$

The solution of inequality A is the interval ----> (-∞,10]

All real numbers less than or equal to 10

$-18 > -5x+2$ -----> inequality B

$-18-2 > -5x$

$-20 > -5x$

Multiply by -1 both sides

$20 < 5x$

Divide by 5 both sides

$4 < x$

Rewrite

$x > 4$

The solution of the inequality B is the interval ----> (4,∞)

All real numbers greater than 4

The solution of the compound inequality is

(-∞,10] ∩ (4,∞)= (4,10]

All real numbers greater than 4 and less than or equal to 10

A number line with an open circle on 4 with shading to the right and a closed circle on 10 with shading to the left

8 0

3 years ago

Read 2 more answers

The LCM of three numbers is 7920 and their GCD is 12. Two of the numbers are 48 and 264. Using factor notation find the third nu

Lelechka [254]

Answer:

The third number is 180.

Step-by-step explanation:

Let the third number be 9x where x is an integer.

48 = 2*2*2*2*3

264 = 2*2*2*3*11

9x = 3*3*x

2*2*2*2*3*3*11*x = 7920y where y is an integer

1584x = 7920y

so x = 7920y / 1584= 5y.

Now the GCD is 12 so x must have 4 as one of its factors.

Also x is a multiple of 5 so it could be 20 then y would be 4.

If x = 20 then the third number is 9*20 = 180.

This checks out OK.

6 0

3 years ago

NEED HELP DUE TODAY!!!

Rainbow [258]

Answer:

50 minutes

Step-by-step explanation:

x=9

(5x9+5)+9+13=72

50+9+13=72

59+13=72

5x9=45

45+5=50

4 0

3 years ago

PLZ HELPPPPP!!!!!!!!!!!!!!

disa [49]

A. or "Company A"

The reason is because its the biggest and longest box on the table

7 0

3 years ago

Please help quickly!!! Will mark BRAINLIEST

JulijaS [17]

Answer:

answer is 2.

Step-by-step explanation:

8 0

4 years ago