HELP! i'll mark you brainliest :)

Answer:

-2

6 = -2 -(-8) because -2 + 8 = 6.

Any time you see -(- you add.

Answer:

63

Step-by-step explanation:

The answer can be solved using the method of PEMDAS.  First, you should divide 12 by 4 to get 3 for that particular part.  Your equation should now be 61 + 3 - 1.  The problem can now be solved from left to right.  Add 3 from 61 to get 64 and subtract 1 from that number to get 63 as your final answer.

It’s (10,5) when it comes to this, see where the Line start and then see where it land

The answer would be 5

20/4=5

Answer:

x = 1, y = 2

Step-by-step explanation:

9x - 4y = 1 -----Equation 1

-8x - 7y = -22 -----Equation 2

-(8x+7y) = -(22) I have inserted an extra equation here so that it is easier to see how I did the next step.

Equation 2 × (-1): 8x+7y = 22 ------Equation 3

When an equation is multiplied by (-1), the -signs can be removed as two - makes one +. This applies to both sides of the equation.

Equation 1 × 22: 198x - 88y = 22 -----Equation 4

Now, Equations 3 and 4 have the same total, that means that they equal to each other.

8x+7y = 198x - 88y

Evaluate by putting the expressions with x on one side and expressions with y on the other side.

7y+88y = 198x-8x

Further evaluate.

95y = 190x

Further simplify by dividing both sides by 95.

y = 2x -----Equation 5

Now we can substitute y = 2x into equation 1.

9x - 4(2x) = 1

Evaluate.

9x - 8x = 1

Further evaluate.

x = 1 -----Equation 6

Substitute x = 1 into equation 5.

y = 2(1)

Evaluate.

y = 2

Answer:

x=-3

Step-by-step explanation:

You need to delete the root by ^2. First you need to leave it alone

[tex]\sqrt{x+7}-x=5\\\sqrt{x+7}=5-x\\(\sqrt{x+7} )^{2}=(5-x)^{2} \\x+7=25+10x+x^2\\x-10x=25+x^2-7\\-9x=18+x^2\\-x^2-9x-18=0\\-1(x^2+9x+18)=0\\x^2+9x+18=\frac{0}{-1}\\x^2+9x+18=0\\(x+6)(x+3)=0\\x+6=0 ===> x=-6\\x+3=0 ===> x=-3\\Checking\\\sqrt{-6+7}-(-6)=5===>\sqrt{1}+6=7\neq5 \\\\\sqrt{-3+7}-(-3)=5===>\sqrt{4}+3=5=5\\\\So \\x=-3[/tex]

Answer:

B. (Second Option)

Answer:

I'm pretty sure they are equal.

Step-by-step explanation:

To prove it, I divided 11.20 by 4 to get 2.80. Then I divided 16.80 by six to get the same amount of the equation. Overall, I think they're equal.

Answer:

it is c

Step-by-step explanation:

Answer: 1%

Step-by-step explanation:

Given that :

Degree of freedom (df) = 21

What proportion of the area under the curve lies to the left of t = -2.518?

Using the online t value calculator :

P(t ≤ - 2.518) = 0.01

Hence, proportion of area under the curve which lies to the left of - 2.518 with degree of freedom (df = 21) is 0.01 = 1%

Answer:

3/10,1/2,4/5

this is because

if you make them all have common denominators they are:

8/10, 3/10, and 5/10

and you put them in order based on their numerators

Answer:

Mrs. Jeeve's 4th grade class earned $52.5 per hour with their lemonade stand.

Step-by-step explanation:

$315/6= $52.5

Answer:

-20+5x=2.

Step-by-step explanation:

..............

Answer:

.78

Step-by-step explanation:

3.90/5 = .78

Answer:

B

Step-by-step explanation:

To get the answer you would have to do 9/2 hours so it is B.

Answer:

B

Step-by-step explanation:

I chose B because a is 2 miles which is wrong. C is 9 1/2 which is not in the question. The other choice wouldve been d which is 2 hours to walk 9 miles but not the best order. I could be wrong tho

Answer:

86.395

Step-by-step explanation:

Answer:

There are no solutions.

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4x/5+2/3+1x/5=x

4/5x+2/3+1/5x=x

(4/5x+1/5x)+(2/3)=x(Combine Like Terms)

x+23=x

x+23=x

Step 2: Subtract x from both sides.

x+2/3−x=x−x

2/3=0

Step 3: Subtract 2/3 from both sides.

2/3−2/3=0−2/3

0=−2/3

Answer:

There are no solutions.

Answer:

6.4 or 6 2/5 or 32/5

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer is correct from Plato, thank me later boys ;)

Answer:

y = 2/3x+3

Step-by-step explanation:

Answer:

A: yes, measure of interior angle = 120

Step-by-step explanation:

120 can be divided with 360 without any remainders

if the total degrees can be divided by the interior angle degrees without any remainders, then it tessellates the plane.

Yes, The regular polygon tessellates the plane because the measure or interior angle = 120. hence, the option A is correct.

We know that 120 could be divided by 360 without having any kind of remainders.

So, in the case when the total degrees could be divided by the interior angle degrees so it should tessellates the plane

hence, the option a is correct.

Learn more about plane here: https://brainly.com/question/12632797

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Answer:

Seniors: 11/18

Juniors: 7/18

Step-by-step explanation:

11+7=18

Answer:

$88.

Step-by-step explanation:

Do 22 * 4, your answer should be 88.

The Correct Answer: $88

Answer:

20,000

Step-by-step explanation:

Answer:

100

100

100

Step-by-step explanation:

15+9+15+9+65