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4 years ago

How do I solve 2(x-8)+4x=20 ? Graph the solution. Solve.

Mathematics

2 answers:

tekilochka [14]4 years ago

7 0

Answer:

Step-by-step explanation:

Although I cannot graph this here, I can solve it.

2(x-8)+4x=20

2x-16+4x=20

6x=36

x=6

Hope this helps!

olya-2409 [2.1K]4 years ago

7 0

4x -16 +4x=20
8x -16 =20
Add 16 to both sides
8x=36
Then divide 8 by both sides
So this means that x=4.5 I hope this helped!

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Rewrite one tenth times x cubed times y plus two tenths times x times y squared using a common factor.

zalisa [80]

The expression which can be rewritten using a common factor is; xy/10 (x² + 2y).

<h3>What is an expression?</h3>

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

We have the following information given as;

One tenth times x cubed times y plus two tenths times x times y squared using a common factor.

We know that 'times' has to be replaced with multiplication.

Now, we will change this into mathematical expression as;

x³y/ 10 + 2xy²/ 10

Now, the common factor can be ;

xy/10

The Common factor refers to the number and the variables taken as a common factor should be able to completely divide the terms given any expression.

Now, taking it as a common factor, we have the following expression:

xy/10 (x² + 2y)

Hence, the required expression is; xy/10 (x² + 2y).

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6 0

1 year ago

Does anyone know this??

Mnenie [13.5K]

Answer: 21

Step-by-step explanation: To solve this problem, we can first set up a proportion because we know that 3 is to 7 as 9 is to x.

So we have $\frac{3}{7} = \frac{9}{x}$ .

Now, we can use cross products to find the missing value.

So we have 3 time x which is 3x and 7 times 9 which is 63.

Rewriting our equation, we have 3x = 63.

Dividing both sides by 3, we find that <em>x = 21</em>.

So, <em>x = 21</em>.

The red arrows in the middle mean that they are parallel so the slopes are the same.

5 0

3 years ago

Jeanie sells M&Ms out of her giant bag at 4 for 5 cents. The machine at the store sells you 9 for 25 cents. Which is the bet

natima [27]

If we take 4/5=80 cent each and when we take 9/25=36 cents a piece so the store is a better deal

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3 years ago

It is 4:12 p.m. Emma's mom will be home from work in 70 minutes, and Emma has gymnastics lessons at 6:00 p.m.

egoroff_w [7]

Answer:

emma is dum as freak

Step-by-step explanation:

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8 0

3 years ago

Find the area of the isosceles trapezoid below by using the area formulas for rectangles and triangles.

marusya05 [52]

The area of the isosceles trapezoid is 136 cm2

To find the area of the trapezoid, first we need to make an exact triangle to the other side of the trapezoid, just like in the diagram is showing, ( so you will have 2 triangles in the trapezoid, thinks about that the triangle that is on the diagram is reflecting to the other side) then we have a rectangle on the center of the trapezoid, we use the area formula which is would be 8x13=104, then we take the area formula of the triangle and substitute, which would be (1/2)8x4=16, we multiply 16 by 2 to get 32, this would be the area of the two triangles plus the area of the rectangle which is 104 gives a total of 136 cm2

Hope this help!!! :)

5 0

4 years ago