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3 years ago

9

Factorize fully the following a) 2x + 10

2 answers:

Harman [31]3 years ago

6 0

Answer:

2(x+5)

Step-by-step explanation:

2x+10

using two as a factor

2(x+5)

yan [13]3 years ago

5 0

2x + 2 * 5

answer: 2(x+5)

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How to do 2x+4=12 plz show how you got it

OverLord2011 [107]

2x + 4 = 12

We're simply just trying to isolate x.

So, we must get x onto it's own side of the equal sign :)

Our first step is to subtract 4 from both sides.

2x + 4 - 4 = 12 - 4

Simplify.

2x = 8

Then, we divide both sides by 2.

2x ÷ 2 = 8 ÷ 2

Simplify.

x = 4

----------

To check your work, simply plug in the value of x into x in the original equation.

In this problem, x = 4, so plug in 4 for x.

2x + 4 = 12

2(4) + 4 = 12

Simplify.

8 + 4 = 12

12 = 12

Therefore, x = 4

~Hope I helped!~

8 0

3 years ago

Read 2 more answers

Please plot this linear equation on a graph, and also explain how to plot it. <br> <img src="https://tex.z-dn.net/?f=y%3D3x-7" i

olasank [31]

Answer:

See below:

Step-by-step explanation:

Hello! I hope you are having a nice day.

We can solve this equation in a single step, we just need a bit of theory and a graph.

We can first see that its in $y=mx+b$ form. Which is also known as Slope-Intercept form.

This means that we know the following.

$b$ is the y coordinate of the y intercept.
$m$ is the slope of the line.

Since we know that, we can see that from our equation that the slope of the line is 3 and the y intercept is (0,-7).

Now that we've gotten that, we can start graphing.

The y intercept is -7 so we can plot (0,-7) as one of our points.

The slope of 3 means that we got up 3 units then right a single unit.

Therefore, another point could be (1,-4).

With our two points, we can create our graph by creating a straight line through those two points and therefore plotting our line.

Cheers!

6 0

2 years ago

Read 2 more answers

Alex bought 9 2/3 pounds of hamburger meat for a cookout. He plans to make 1/3 pound hamburgers.What is the maximum number of 1/

sladkih [1.3K]

29 you divide 1/3 by 9 and add the extra 2

8 0

3 years ago

Read 2 more answers

What is the area of the white border?

Lina20 [59]

Answer:

$A_{white} = 119\ cm^2$

Step-by-step explanation:

<u>Step 1: Determine the area of the black area</u>

$A = l * w$

$A = 8\ cm * 2\ cm$

$A = 16\ cm^2$

<u>Step 2: Determine the area of the entire white and black area</u>

$A = l * w$

$A = 9\ cm * 15\ cm$

$A = 135\ cm^2$

<u>Step 3: Determine the difference to just get the white area</u>

$A_{white} = 135\ cm^2 - 16\ cm^2$

$A_{white} = 119\ cm^2$

Answer: $A_{white} = 119\ cm^2$

4 0

2 years ago

<img src="https://tex.z-dn.net/?f=v%20%3D%20%20%5Cfrac%7Ber%7D%7Br%20%2B%20a%7D%20" id="TexFormula1" title="v = \frac{er}{r + a

Mrac [35]

Answer:

r = va/(e - v)

Step-by-step explanation:

v = er/(r + a)

vr + va = er

va = er - vr

va = r(e - v)

r = va/(e - v)

6 0

3 years ago

Read 2 more answers