What is
four less than twice a number is six more than half the sum of the number and 3
as a symbolic equation?

Answer:

21, 12

Step-by-step explanation:

can you give me brainliest pls im trying to level up lol

Answer:

So sorry, I pressed the add answer button on accident!!! So sorry, I have absolutely no idea how to answer this.

Step-by-step explanation:

Answer:

2^3·2^2 = 2^3+2 = 2^5  

Step-by-step explanation:

Diego was trying to write 2^3 · 2^2

He wrote  2^3·2^2 = 2^3*2 = 2^6  

But this is wrong because when bases are same exponents are added.

This is the law of exponents.

The correct form would be

2^3·2^2 = 2^3+2 = 2^5  

For understanding it better we can write it like this

2^3·2^2 =

There are 3 two and 2 twos .When totaled there are 5 two not 6 twos.

Answer:

EF=10

Step-by-step explanation:

If they are corresponding,

AB = 2 x Scale factor of 5 = 10

Answer:

x=3, y=2

Step-by-step explanation:

we substitute 4x in the first equation by it's equivalent in the second equation:

2y + 8 + 3y =18

5y = 10

y=2

we substitute y in the second equation:

4x= 8+4

x=12/4

X=3

The solutions of the equations is

The value of x = 3

The value of y = 2

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the first equation be A

The value of A is

4x + 3y = 18   be equation (1)

Let the second equation be B

The value of B is

4x = 8 + 2y   be equation (2)

On simplifying the equations , we get

Substitute the value of 4x from equation (2) in equation (1) , we get

( 8 + 2y ) + 3y = 18

8 + 2y + 3y = 18

8 + 5y = 18

Subtracting 8 on both sides of the equation , we get

5y = 18 - 10

5y = 10

Divide by 5 on both sides of the equation , we get

y = 2

So , the value of y is 2

Substitute the value of y in equation (2) , we get

4x = 8 + 2y

4x = 8 + 4

4x = 12

Divide by 4 on both sides of the equation , we get

x = 3

Hence , the value of x and y from the equations are 3 and 2 respectively

To learn more about equations click :

https://brainly.com/question/19297665

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Answer:

72.18°

Step-by-step explanation:

SOHCAHTOA

Sine = Opposite / Hypotenuse

Cosine = Adjacent / Hypotenuse

Tangent = Opposite / Adjacent

There is the opposite side from angle x, which is 28.

And there is the adjacent side, which is 19.

so: tanx = 28 / 19

Solve by using the inverse function on the calculator (usually shift/second and tan button):

[tex]tan^{-1}(\frac{28}{9})=x=72.18111109[/tex] degrees

Answer:

A chemical reaction happens when substances break apart or combine to form one or more new substances.

Step-by-step explanation:

New substances form when bonds break and new bonds form. The chemical properties of the new substances are different from those of the original substances

Answer: the answer is 10 trust me.

Answer:

225

Step-by-step explanation:

3 out of 5 is .6 is u multiply .6 by 375 you get 225

Answer:

225

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

If you look at the graph, the first dot is at roughly 2.25, your price of the school lunch. The slope of this problem is how many lunches you have. When you add each dot's monetary value, you will end up with with $4.50, $6.75, etc. This means that A is the correct graph to choose.

Answer:

A

Step-by-step explanation:

I think. Sorry if it is wrong.

-2x^3-x^2-6x-7

I don't really know what else

Answer:

33

Step-by-step explanation:

Supplementary angles add up to 180 degrees. So, 4x + (x+15) = 180

5x+15=180

5x=165

x=33

Step-by-step explanation:

hope this help you more..

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Answer:

1/2

Step-by-step explanation:

2/3 x 5/6 = 10/18

10/18 divided by 10/9  —————- > 10/ 18 times 9/10=90/180

(You switch up 10/9 into a multiplication equation)

90/180=1/2

Therefore,  2/3 x 5/6 divided by 10/9= 1/2

Answer:

This is a test, please refer to the Academic Integrity and Honor Code

Sin E= 0. 198.

E= 11.42°

Step-by-step explanation:

using Pythagoras theorem.

Hyp²= base² + height ².

101²= 99²+x²

x²= 101²-99²

x²=10201-9801.

x²=400

x=√400

x=20

sin E = opposite

________

adjacent.

sin E= 20

__

101.

sin E=0.198.

E= sin^-1(0.198)

E= 11.42°

Answer:

-(p+1) (p-5)/ P

Step-by-step explanation:

9514 1404 393

Answer:

  -31/15

Step-by-step explanation:

Put the numbers in the expression and do the arithmetic.

  [tex]c-4x=-\dfrac{7}{15}-4\cdot\dfrac{2}{5}=-\left(\dfrac{7}{15}+\dfrac{8}{5}\right)\\\\=-\left(\dfrac{7}{15}+\dfrac{24}{15}\right)=\boxed{-\dfrac{31}{15}}[/tex]

__

Your graphing calculator can probably help with this.

Complete question :

What is the average amount of milk used for an order of pancakes? Enter your answer as a fraction or mixed number in simplest form.

1/2c, 1/4c, 1/2c, 3/4c, 1/2c, 3/4c, 1/2c, 1/4c, 1/2c, 1/2c

Answer:

1/2c

Step-by-step explanation:

Taking the sum :

1/2c + 1/4c + 1/2c + 3/4c + 1/2c + 3/4c + 1/2c + 1/4c + 1/2c + 1/2c = 6/2c + 2/4c + 6/4c

6/2c + 2/4c + 6/4c

3/1 + 1/2 + 3/2 = (6 + 1 + 3) / 2 = 10 /2

= 5

Total number of orders = 10

Average = 5 / 10 = 1 /2 c

Answer:

512

Step-by-step explanation:

8x8x8=512

pretty simple

Answer:

512

Step-by-step explanation:

8*8*8=512

Answer:

504

Step-by-step explanation:

Answer:

2.39m

Step-by-step explanation:

Take the circumference of the circle(15m) and divide it by 3.14(Pi)

Then, divide it by 2 again, and get 2.39m.

To double-check that your statement is correct,

multiply 15 x 3.14 x 2 to get your answer.

Answer:

As,

5x - 2 + 5x - 2 + 3x + 1 = 13x - 3 = 42

But here,

13x - 2 which is not equal to 13x - 3

Hence, it's wrong.

As,

5x - 2 + 5x - 2 + 3x + 1 = (10x - 4) + (3x + 1) = 42

But here,

(10x - 2) + (3x + 1) which is not equal to (10x - 4) + (3x + 1)

Hence, it's wrong.

As,

5x - 2 + 5x - 2 + 3x + 1 = 2(5x - 2) + 3x + 1 = 42

But here,

2(5x-2)+2(3x+1) which is not equal to 2(5x - 2) + 3x + 1

Hence, it's wrong.

As,

5x - 2 + 5x - 2 + 3x + 1 = 42

Also,

5x-2+3x+1+5x-2 equal to 5x-2+3x+1+5x-2

Hence, it's correct.

Answer:

A and D is right

Step-by-step explanation:

I did the quiz and use the answer and it was right

Answer:

x=-1.34

Step-by-step explanation:

x=-1.34

Answer:

2.44

Step-by-step explanation:

Have a good day :)