Hi. Here are the answers and I am attaching a file that shows how I got them.

1. The simplified answer is: -5/12
2. The simplified answer is: - 1 1/5
3. The simplified answer is: - 1 7/10
4. The simplified answer is: 1 5/6
5. The simplified answer is: 1 2/3

Hope this helps.

Take care,
Diana

3 0

3 years ago

Solve for x. <br> 8x^2 - 5 = 11

GenaCL600 [577]

Answer:

x = ±sqrt(2)

Step-by-step explanation:

8x^2 - 5 = 11

Add 5 to each side

8x^2 - 5+5 = 11+5

8x^2 = 16

Divide each side by 8

8x^2 = 16/8

x^2 = 2

Take the square root of each side

sqrt(x^2) = ±sqrt(2)

x = ±sqrt(2)

5 0

4 years ago

Read 2 more answers

Solve the equation for x, 3(2x-5) - 3(x - 7) = 2x - 9

AVprozaik [17]

Answer:

x = -15

Step-by-step explanation:

Step 1: Write equation

3(2x - 5) - 3(x - 7) = 2x - 9

Step 2: Distribute

6x - 15 - 3x + 21 = 2x - 9

Step 3: Combine like terms

3x + 6 = 2x - 9

Step 4: Subtract 2x on both sides

x + 6 = -9

Step 5: Subtract 6 on both sides

x = -15

5 0

3 years ago

What percent of 120 is 130?

Pachacha [2.7K]

Answer:

120 of 130 ≈ 90.23%

Step-by-step explanation:

120 ÷ 130 = 0.92307692307

4 0

3 years ago