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3 years ago

Solve: 3(x -2) + 6 = 15

Mathematics

2 answers:

fgiga [73]3 years ago

8 0

Answer:

x=5!

Step-by-step explanation:

3x-6+6=15

3x=15

x=5

hope it'll help! good night!

Anit [1.1K]3 years ago

3 0

$3(x-2)+6=15\qquad\text{subtract 6 from both sides}\\\\3(x-2)=9\qquad\text{use distributive property}\\\\(3)(x)+(3)(-2)=9\\\\3x-6=9\qquad\text{add 6 to both sides}\\\\3x=15\qquad\text{divide both sides by 3}\\\\\boxed{x=5}$

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krek1111 [17]

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4 years ago

|x −4| if x >4<br> Please answer quick will award brainliest!

IRINA_888 [86]

Answer:

x = −4

Step-by-step explanation:

Add x to both sides of the equation. x + 4 + x = − 4 Add x and x . 2 x + 4 = −4

Subtract 4 from both sides of the equation. 2 x = −4 − 4 Subtract 4 from - 4. 2x = −8

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3 0

3 years ago

Find the dimensions of the box described.

Rina8888 [55]

The dimensions of the box are 6 inches, 12 inches and 10 inches

Step-by-step explanation:

There is a box, with dimensions length, width and height

The length is twice as long as the width
The height is 4 inches greater than the width
The volume is 720 cubic inches

We need to find its dimensions

Assume that the width of the box is x

∵ The width of the box is x

∵ The length is twice as long as the width

- Twice means times 2

∴ The length of the box = 2(x) = 2x

∵ The height is 4 inches greater than the width

- 4 inches greater means add 4

∴ The height of the box = x + 4

∵ The volume of the box = length × width × height

∵ length = 2x , width = x , height = x + 4

∴ The volume of the box = (2x) × (x) × (x + 4)

∵ (2x) × (x) = 2x²

∵ 2x²(x + 4) = (2x²)(x) + (2x²)(4) = 2x³ + 8x²

∴ The volume of the box = 2x³ + 8x²

∵ The volume of the box is 720 inches³

∴ 2x³ + 8x = 720

- Subtract 720 from both sides

∴ 2x³ + 8x² - 720 = 0

- Use your calculator to solve the equation and find the value of x

∴ x = 6

∴ The width of the box = 6 inches

∴ The length of the box = 2(6) = 12 inches

∴ The height of the box = 6 + 4 = 10 inches

The dimensions of the box are 6 inches, 12 inches and 10 inches

Learn more:

You can learn more about volume in brainly.com/question/12497249

#LearnwithBrainly

5 0

4 years ago

How many g of amino acids are in a 2,000mL total parenteral nutrition of 4.25% travesol (amino acids and 20%dextrose?

kirill115 [55]

Answer:

The mass of amino acid present is 85 g

Step-by-step explanation:

From the question we are told that

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Generally the volume of the amino acid present is

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Generally

$mass \ \ \alpha \ \ volume$

So the mass of amino acid present is 85g

6 0

3 years ago

8. Find the other endpoint of the segment with a midpoint of (-6, 4) and endpoint of (4, 8).

sukhopar [10]

Answer:

1,3 is the answer... if you look down here↓:

Step-by-step explanation:

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2 years ago