Isaac Green Elimination (Level 1) Mar 17, 8:18:58 AM Find the solution of the system of equations. 8x + y = -13 8r 2y = 10​

Answers

Answer 1

Answer:

y = 23

x = -4.5

Step-by-step explanation:

Given:

Equation

8x + y = -13 ......eq1

8x + 2y = 10​........eq2

Find:

Solution

Computation:

Eq2 - Eq1

y = 23

From eq1

8x + y = -13

8x + 23 = -13

8x = -36

x = -4.5


Related Questions

what is the median for 15, 22,16, 24, 16, 20 ,12, 27

Answers

16

12, 15, 16, 16, 20, 22, 27

Answer:

18

Step-by-step explanation:

12, 15, 16, 16, 20, 22, 24, 27

The average of 16 and 20 is 18

Marcos has 15 coins in nickels and quarters. He had 3 more quarters than
nickels. How many nickels and quarter does he have?

Answers

6 nickels 9 quarters

Sara takes 1/6 of an hour to vacuum his moms car it takes 4 times that long to wash the car then it takes you to wax the car twice the amount of time to wash it how long does it take Sarah in total to vacuum wash and wax her moms car

Answers

Answer:2 hours & 10 minutes Step-by-step explanation:1/6 of an hour is 10 minutes. She vacuumed for 10 minutes. It took 4 times as long to wash the car so 10 * 4 = 40. She washed the car for 40 minutes. It took her twice as long to wax the car as it did for her to wash it so 40 * 2 = 80. She waxed the car for 80 minutes. 10 + 40 + 80 = 130 minutes or 2 hours and 10 minutes.

Solve for x. 8x+10-5x=15.

Answers

Answer:

=

5

3

Step-by-step explanation:

8

+

1

0

5

=

1

5

3

+

1

0

=

1

5

Answer:

x = 5 / 3 = 1.667

Step-by-step explanation:

8*x+10-5*x-(15)=0

Solve  :    3x-5 = 0

Add  5  to both sides of the equation :

                     3x = 5

Divide both sides of the equation by 3:

                    x = 5/3 = 1.667

x = 5/3 = 1.667

In Mr. Walker's 7th grade class, the 30 students created a pie chart showing their choices for favorite pet. Based on the class findings, how many students chose cat as their favorite pet? Explain.

A) 6

B) 10

C) 3

D) 9

Answers

Answer:

D - 9 students

Step-by-step explanation:

For this problem, you need to find the percentage of students left. Subtracting all the percentages you already know, you get 100 -  30 - 20 - 10 - 10, or 30. Since there are 30 students in the class, 30 percent of 30 is 9 students.

Hopefully this helps- let me know if you have any questions!

Determine the roots of the following function of the quadratic formula:
x^2-5x-4=0

Answers

Answer:

4,1

Step-by-step explanation:

(x-4)(x-1)

x=4 or x=1

The answer is 4,1
-------------------------11

how do you calculate the standard error of the mean in SPSS?

Answers

Answer:

Hope this helps

Step-by-step explanation:

Std Error Mean – Standard Error Mean is the estimated standard deviation of the sample mean. This value is estimated as the standard deviation of one sample divided by the square root of sample size: 9.47859/sqrt(200) = . 67024, 10.25294/sqrt(200) = . 72499.

Half of a number is equal to 14

Answers

28 is the answer



Half of 28 is 14


The square of a number is 3 less than four times the number. Which values could be the number? 0 0 -3 O 1​

Answers

Answer:

3 and/or 1.

Step-by-step explanation:

Answer:

1, 3

Step-by-step explanation:

1^2 = 1

1 x 4 = 4

4-1 = 3

3^2 = 9

3 x 4 = 12

12-9 = 3

i need an answer for a question:
The cost of 12 ounces of tuna is $2.40 what is the cost per ounce of tuna?​

Answers

Answer:

$0.20

Step-by-step explanation:

if you divide 2.40 by 12 you get 0.20, which is the answer


somebody please help quick! solve for x

Answers

Answer:

x = 8

Step-by-step explanation:

51° = 4x + 19

32° = 4x

8 = x

Answer:

x = 8

Step-by-step explanation:

well, 4 x something + 19 = 51

51-19=32

32/4=8

so your answer is 8

4 x 8 + 19 = 51

find perimeter of the figure.​

Answers

Answer:

I don't know if you want to be a good

Which equation can be used to find the length of AC?

Answers

(10)sin(40°)=AC is the correct answer

Answer:

10*sin(40)=AC

Step-by-step explanation:

[tex]sin(x)=\frac{opposite}{hypotenuse}[/tex]

so

here it says

[tex]sin(40)=\frac{AC}{10}[/tex]  multiply both sides by 10

[tex]10*sin(40)=AC[/tex]

OMG PLEASE HELP MEEEEEEE

Which expression could represent the additive inverse property?

A) −9 + 0
B) −9 −9
C) −9 + 1
D) −9 + 9

Answers

The answer is D!!!!!!
Additive inverse will equal to 0.
So the answer is D) -9+9

- >
2X 14
2x 6 x 6 > 14
14 - 6
-2
- 2x o 7 8
X - 4
0 4)
3(244) + 1) 2 (2y 3) 8

Answers

Answer:

no te entiendo, puedes escribir la pregunta completa

please help me i really need help please

Answers

Answer:

104

Step-by-step explanation:

Hey There!

So essentially what this problem is asking us to do is solve for the missing angle in a triangle

Remember all of the angles in a triangle will add up to 180

so to find the missing angle we subtract the given angles (38 and 38) from 180

180-38-38=104

so we can conclude that angle A equals 104

Hope this helps!

Answer:

104 degrees

Step-by-step explanation:

Hope this helps!

Have a great day!

In a recent Super Bowl, a TV network predicted that 25 % of the audience would express an interest in seeing one of its forthcoming television shows. The network ran commercials for these shows during the Super Bowl. The day after the Super Bowl, and Advertising Group sampled 150 people who saw the commercials and found that 30 of them said they would watch one of the television shows. Suppose you have the following null and alternative hypotheses for a test you are running:
H0:p=0.53H0:p=0.53
Ha:p≠0.53Ha:p≠0.53Calculate the test statistic.

Answers

Answer:

The right solution is "-8.25".

Step-by-step explanation:

The given values are:

Sampled people,

n = 150

Null and alternative hypotheses will be:

[tex]H_0:p=0.53[/tex]

[tex]Ha:p\neq 0.53[/tex]

The z-statistics will be:

⇒ [tex]z=\frac{\bar{p}-p_0}{\sqrt{\frac{p_0(1-p_0)}{n} } }[/tex]

On substituting the values, we get

⇒    [tex]=\frac{0.2-0.53}{\sqrt{\frac{0.53(1-0.53)}{150} } }[/tex]

⇒    [tex]=\frac{-0.33}{\sqrt{\frac{0.24}{150}} }[/tex]

⇒    [tex]=\frac{-0.33}{0.04}[/tex]

⇒    [tex]=-8.25[/tex]


How long will it take for an investment of $9000 to double at 4% Interest compounded continuously? Round to the nearest tenth of a year.

Answers

Someone else is answering the question. I hope they can help u

Which of the following is equivalent to the complex number i24?

Answers

Answer: 1

Step-by-step explanation:

Rewrite as (i^4)^6

Rewrite i^4 as 1

Rewrite i^4 as (i^2) ^2

((i^2)) ^2)6

Rewrite i^2 as -1

((-1) ^2) 6

Raise -1 to the power of 2

1^6

One to any power is 1.

If 1=36, 2=38, 3=39, what does 4 equal to? kindly explain

Answers

Answer: 4=40 ! Its a pattern
4=41 the pattern is +2, +1, +2, etc..

Using the same triangle as above, calculate the area of the triangle. You must show TWO methods for calculating the area of the triangle. Round both answers to nearest tenth. Hint: you should be using the same values you provided in question 3 and you can use any values you calculated in question 3 as well.

Answers

Answer:

Step-by-step explanation:

Area of a triangle is 1/2 * b * h

b = base, the one labeled b on the diagram

h = height, the dotted line in the middle

so, you do pythagorean theorem with a and b to find the dotted line

a² + b² = h² (h is for height)

h = [tex]\sqrt{a^{2} +b^{2}}[/tex]

Then, you just plug in the numbers from question 3 to find h and then you do

1/2 * b * h

need help on question 22 and 23 , ill give extra points

Answers

22. Republic
23. Veto
22) republic
23) veto

30 + _ = 136 Cubic feet

Answers

Answer:

106

Step-by-step explanation:

Bring the values to one side and change the signs

Always substitute in brackets

_=136+(-30)

106=136-30

Thus your answer is 106

Lucas is planting grass on the shaded portions of the yard. What will be the total area covered by​ grass?

Answers

Complete Question:

Lucas is planting grass on the shaded portions of the yard. What will be the total area of covered by grass? Fill in the missing.

Part A= 12 x ? = ? ft²

Part B= 0.5 x ? x 9 = ?ft²

Part C= 0.5 x 7 x ? = ?ft²

Total Area= ?ft²

Answer:

[tex]A = 108ft^2[/tex]

[tex]B = 27ft^2[/tex]

[tex]C = 24.5ft^2[/tex]

[tex]Area = 159.50ft^2[/tex]

Step-by-step explanation:

Given

See attachment

From the attachment;

Part A is a rectangle with dimension 9ft by 12ft

So,

[tex]A = 12ft * 9ft[/tex]

[tex]A = 108ft^2[/tex]

Part B is a triangle with dimension: height = 6 and base = 9

The height is calculated as:

[tex]Height = 12ft - 6ft = 6ft[/tex]

And the base is:

[tex]Base = 18ft - 9ft = 9ft[/tex]

So, the area is:

[tex]B = 0.5 * 6ft * 9ft[/tex]

[tex]B = 27ft^2[/tex]

Part C is a triangle with dimension: height = 7 and base = 7

So, the area is:

[tex]C = 0.5 * 7 * 7ft^2[/tex]

[tex]C = 24.5ft^2[/tex]

Total Area is:

[tex]Area = A + B + C[/tex]

[tex]Area = 108ft^2 + 27ft^2 + 24.5ft^2[/tex]

[tex]Area = 159.50ft^2[/tex]

Determine whether each of the given values of x is a solution to the following inequality.
3x + 7 > -5

Answers

Answer:

2 -- True

0 -- True

-3 -- True

-4 -- False

-6 -- False

Step-by-step explanation:

When solved the inequality, 3x + 7 > -5, it would turn out to be x > -4

Anything greater than -4 is a solution.

Yoko is mailing packages. Each small package costs her $2.20 to send. Each large package costs her $3.40. How much will
it cost her to send 3 small packages and 1 large package?

Answers

Answer:

$10

Step-by-step explanation:

3($2.20)+3.40

6.60+3.40=10

plzzzzzzzzzzzzzzzz SOLVE THE PIc

Answers

Answer:

The area is 72.

Step-by-step explanation:

2 * 6 = 12

6 * 10 = 60

60 + 12 = 72

Hope this helped! Have a nice day! Plz mark as brainliest!!!

-XxDeathshotxX

Answer:

72 units squared

Step-by-step explanation:

6x2=12

10x6=6

60+12=72

Given the function C(t) = (t - 2)(t + 6) (t - 4):
the coordinates of its C-intercept are
the coordinates of its t-intercepts are

Answers

Answer:

c*(t)-((t-2)*(t+6)*(t-4))=0

Step-by-step explanation:

ct -  ((t - 2) • (t + 6) • (t - 4))  = 0

ct -  (t - 2) • (t + 6) • (t - 4)  = 0

3.1    ct-t3+28t-48  is not a perfect cube

ct - t3 + 28t - 48  = 0

Solve   ct-t3+28t-48  = 0

x =5 and z = 4 z2 - 2x

Answers

Answer:

Whenever you see a letter beside a number, just know you should multiply that number by the letter. So z = 4, then 2z = 2×4, and x = 5, then 2× 5.

so : 2×4 = 8 - 2×5

so : 8-10

so the answer would then be -2.

Step-by-step explanation:

I have explained in comments

hope it helps

Help me with both questions please please help!

Answers

Answer:

we need to know whats given above can you show us a picture of the table above?

Step-by-step explanation:

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