Mathematics High School

Question 12 (2 points)
Solve the system of equations using subsititution.
y = 2x - 3
y + 5 = 3x

Answers

Answer 1

Answer:

(2,1)

x = 2

y = 1

Explanation:

Check the image

Question 12 (2 Points)Solve The System Of Equations Using Subsititution.y = 2x - 3y + 5 = 3x
Answer 2

Answer:

(2,1)

Step-by-step explanation:

Since we already have an equation for y, all we need to do is plug that into y in the other equation.

y + 5 = 3x

(2x - 3) + 5 = 3x

2x - 3 + 5 = 3x

2x + 2 = 3x

2 = x

Now that we know y, we just need to plug the value of x into the equation.

y = 2(2) - 3

= 4 - 3

= 1

Related Questions

(5x - 7y + 8) + (-y + 6 - 4x) + (9 - 3x + 8y)

Answers

The answer is -2x+ 23

what is the answer?????

Answers

Answer:

40 meter (4000 centimeters)

Step-by-step explanation:

bro just do 4 x 10 = 40 x 100 = 4000

Give me Brainllest

2) 24, 12, 10, 15, 10, 22, 12 mean: _________ median: _________ mode: ________ range: ________

Answers

Mean:15
Median:12
Mode:12,10
Range:14

f(x) = -2x + 9 What is f(2h) ?

Answers

Answer:

f(2h) = -4h + 9

Step-by-step explanation:

Jacob:  Start with the given function f(x) = -2x + 9 and replace 'x' with 2h:

f(x) = -2x + 9 becomes:

f(2h) = -2(2h) + 9, or

f(2h) = -4h + 9

Answer:

-4h + 9

Step-by-step explanation:

f(x) = -2x + 9

f(2h) = -2(2h) + 9

f(2h) = -4h + 9

Find the volume of the cylinder.

Answers

Answer:

Step-by-step explanation:

V=πr^2h is the equation for volume of a cylinder.

the radius is half of 50 so 50/2=25.

then 75 is the height so you plug the vaules in

V=(3.14)((25)^2)(75)

then multiply and you get 147187.5 rounded to the nearest whole number that is 147188

hope this helps :)

If a=10 and b=3 , find the value of x .

Answers

Answer:

7

Step-by-step explanation:

10-3=7

Which is a reasonable conclusion based on the data?
A. As the mass increase, the value increase in a nonlinear association

B. As the mass increase, the value increase in a linear association

C. As the mass increase by 0.1 gram, the value increases $100

D. There is no association between the mass and value

Answers

Answer: b

Step-by-step explanation: :)

Write two numbers that have the given absolute value.

22

Answers

Answer:

22 and -22

Step-by-step explanation:

Absolute value means the distance of a number from zero

NEED HELP ASAP!!!!! Can someone help me???

Answers

Answer:

F = 6x

O = -3x

I = 10x

L = -5

Step-by-step explanation:

FOIL follows the formula:

(a + b)(c + d) = ac + ad + bc+ bd

Answer:

F: (3x) (2x) = 6x^2

O: (3x) (- 1) = -3x

I: (5) (2x) = 10x

L: (5) (-1) = -5

Based on the data given in the table,
which is a reasonable estimate of
the download time of a 600-kilobyte
A 10 seconds
B 12 seconds
C 15 seconds
D 17 seconds

Answers

Answer:

C. 15 seconds

Step-by-step explanation:

It wouldn't be A, because 10 seconds can download 348 kilobytes, it wouldn't be B too as it would be at about 400+ kilobytes, the only possible answer is 15 seconds as the last option takes 17 seconds for 715 kilobytes.

Solve the following system of equations show all your work. Write the solution as a point (x,y) (4 points).
3x + 5y = -40
–x + 4y = -15?

Answers

Answer:

-5,-5

Step-by-step explanation:

m a  t  h  w  a  y  .  c  o  m

Triangle ABC is a right triangle. The length of one leg is 30 cm and the hypotenuse is 78 cm. What is the length of the other leg?

Answers

Answer:

72

Step-by-step explanation:

there is 180 degrees in a triangle

A fine fabric was selling for $10.50 per half yard. Joni bought 2 1/3 yards. How much did he spend? Brainliest for correct answer.

Answers

Answer:

$49 is spended by him.

solution given:

rate=for $10.50 per half yard=$10.50/0.5=$21 per yard

area=2 1/3=7/3yards

now

total cost =rate× area =$21×7/3=$49

Find the percent of change of 2/5 to 1/3?

Answers

Equals 50% decrease


At an auto repair shop. 3.5 hours of labour costs $311.50. What is the labour
charge for a 5 hour job?

Answers

445 .                       Answer:

Step-by-step explanation:

445 I think ………………………….

Find the volume of the sphere
I NEED HELP!!!

Answers

904.78 I believe
Explanation
To find the volume here is the formula
(4/3 x pie x radius cubed)
Since they give you the diameter then just half it (6)
(4/3 x pie x 216)

HELPPP ASAP 10 POINTS

Answers

Answer:

circumference = 25.43 in

Step-by-step explanation:

circumference = πd

circumference = (3.14)(8.1) = 25.43 in

Use the recursive relationship to complete the next two rows of Pascal's triangle. Row 5: 1 _ _ _ _ 1 Row 6: 1 _ _ _ _ _ 1

Answers

Answer:

      1   5  10  10   5   1           Row 5

   1   6   15  20  15   6    1       Row 6

Recursive relationship:

Each row has number of positions = row number + 1. The Row 0 is always 1.

The first and last number in each row is 1, the number in the second position and the penultimate corresponds to the number of the row.  The middle numbers correspond to the sum of the two numbers in the top row. The resulting number from the addition is located in the middle of the numbers added in the next row.

Step-by-step explanation:

The pascal's triangle

* Row 0  =  1

* Row 1 = 1  1

                   1                          Row 0

                1    1                       Row 1

Since there are only two positions, the first and last are 1.

*Row 2 = 1  _ 1

                   1                          Row 0

                1    1                       Row 1

              1   2   1                     Row 2

2 is the sum of 1 + 1 and we place it in the next row between the added numbers 1 and 1.

* Row 3 = 1 _  _    1

                  1                          Row 0

                1    1                       Row 1

              1   2  1                    Row 2

            1   3   3  1                   Row 3

1 + 2 = 3  (the row number and the and adding the numbers from the previous row)

* Row 4 = 1 _  _    _   1

                  1                          Row 0

                1    1                       Row 1

              1   2   1                     Row 2

            1   3  3  1                   Row 3

         1   4   6   4   1                Row 4

1 + 3 = 4  (the row number)

3 +3 = 6

* Row 5 = 1 _  _   _  _   1

                  1                          Row 0

                1    1                       Row 1

              1   2   1                     Row 2

            1   3   3  1                   Row 3

         1   4   6  4   1                Row 4

     1   5   10   10   5   1           Row 5

1 + 4 = 5

4 + 6 = 10

* Row 6 = 1  _  _ _  _  _   1

                  1                          Row 0

                1    1                       Row 1

              1   2   1                     Row 2

            1   3   3  1                   Row 3

         1   4   6   4   1                Row 4

     1   5   10 10  5   1           Row 5

   1   6   15  20  15   6   1        Row 6

1 + 5 = 6

5 + 10 = 15

10 + 10 = 20

)) What is 538 rounded to the nearest ten? 500 535 ))
​

Answers

Step-by-step explanation:

540 because it I think or 535 but I I think it's 540

Use the distributive property to write an expression that is equivalent to 6(w - 4)

Answers

Answer:

6w-24

Step-by-step explanation:

You would distribute 6 into the parentheses, which would turn (w-4) to 6w-24

Answer:

(w - 4)6

Step-by-step explanation:

its the same exact thing but if you're looking for the simplified version then it's 6w-24

HELPPPPPPPPPPPP MEHHHHHHHHHHHHHHHHHHHHHHHHH PLZZZZZZZZZZZZZZZZ GRADES GO OUT TOMMORROW AND I NEED THIS SO I CAN GET MY GRADE UP FROM A D+ PLZZZZZZZZ MY PARENTS WILL MURDER ME

Answers

Answer:

Fair well i hope you lived a good life

Step-by-step explanation:

Place the quadratic y=2x^2+24x+79 into vertex form by using the method of completing the square and then state the coordinates of its vertex.

Answers

Answer:

[tex]y=2(x+6)^2+7[/tex]

[tex](-6,7)[/tex]

Step-by-step explanation:

[tex]y=2x^2+24x+79[/tex]

Completing the square is a process of converting a quadratic equation in standard form into vertex form.

The first step in completing the square is grouping the quadratic and linear terms of the quadratic equation.

[tex]y=(2x^2+24x)+79[/tex]

Factor out the coefficient of the quadratic term,

[tex]y=2(x^2+12x)+79[/tex]

Now complete the square, add a term to make the grouped part of the equation a complete square, then balance the equation.

[tex]y=2(x^2+12x+36-36)+79[/tex]

Simplify,

[tex]y=2(x^2+12x+36)+79+(2)(-36)[/tex]

[tex]y=2(x+6)^2+79-72[/tex]

[tex]y=2(x+6)^2+7[/tex]

The x-coordinate of the vertex of the equation is equal to (-1) times the numerical part of the quadratic term, and the y-coordinate is equal to the constant.

[tex](-6,7)[/tex]

What 6 over 4 simplified

Answers

Correct answer is 6/4 = 3/2 = 1 1 2
The answer for this question is 3/2

luna mixes 3/4 cup of orange juice with 3/8 cup of cranberry juice.she gives 5/8 cup of juice to mags. how much is left in lunas glass

Answers

Answer:4/8 or simplified answer 1/2

Step-by-step explanation:

3/4 + 3/8, first you have to find the highest common factor of 4 and 8.

The answer is 9. The denominator of both side will be 8. Now you ask yourself 4 times what gives you 8 and times the numerator by that number. And do the same for the 8.

6/8 + 3/8= 9/8

9/8 - 5/8= 4/8

The simplified answer is 1/2

Please help me I’m struggling

Answers

Answer:

i think it's a

hope this helps :)

can someone please help me

Answers

1.
x=−2±6i
———
5

2. x= 2 ± i√2

If (5^n)^3 = 5^12 then n= ?
6

Answers

Answer: n=4

Step-by-step explanation:

Uh I did some trial and error and it came up with the right answer

Help graph math brainliest and I will add you

Answers

The answer is D.........

ASAP!!! and no links please 25 points!!!!!
The radius of a can of soda is 0.75 inches. Find the area of the top of the can. Round to the nearest hundredth.

(Values only! No units!)

Answers

Answer:

2.36

Step-by-step explanation:

Multiply the radius (0.75) with the value of pi (3.14.....)

0.75 x pi = area

area = 2.35619449019

ROUNDED TO HUNDREDTHS = 2.36

hope this helps :)

Find the volume of the rectangular pyramid.
16 ft
-Ft--
2 ft
7 ft
Figure not drawn to scale.
Answer:
ft 3

Answers

The volume of the pyramid is 3 feet
The answer should be 3 ft
Other Questions
The drama club is selling tickets to their play to raise money for the show's expenses. Each student ticket sells for $5.50 and each adult ticket sells for $10. The auditorium can hold at most 140 people. The drama club must make no less than $1100 from ticket sales to cover the show's costs. If xrepresents the number of student tickets sold and y represents the number of adult tickets sold, write and solve a system of inequalities graphically and determine one possible solution. Find the volume of therectangular prism.2 cm8 cm5 cmV = [?] cm3 This natural resource supports the economy of many nations in the region.a. fertile soilb. uraniumc. petroleum d. coal Using Pathos, "You are trying to persuade an audience that they should buy a particular brand of cereal." Write a persuasive sentence Fill in the blanks with the present tense of the indicated verbs. ver Yo ________. Tus hermanos ________. T ________. Javier ________. Nosotros ________. Susan is working the night shift and there aren't many people in the store. Hercoworker notices that the cash register has more money than accounted for.She decides to take the extra money without reporting it. How should Susanhandle this situation ethically?A. Pretend like she didn't see the money being takenB. Inform the manager that money was taken from the cash registerC. Tell another coworker what happened and ask him not to tellD. Ask the coworker to split the extra money with her Isabelle rides her bike to school. The graph shows her speed at different times during her ride. Select the word that describes Isabelles speed during the indicated interval.Time Interval Speed0 to 2 minutes 3 to 4 minutes 6 to 8 minutes 9 to 11 minutes Twains admiration of Darwin is undermined by what? What is the proper order of organization from simplest to most complex.A. rib bone, epithelial cell, heart, adipose tissueB. cardiac muscle tissue, muscle cell, heart, muscular systemC. lung cell, alveoli, lung, respiratory systemD. neuron, nervous tissue, nervous system, brainHELP ME ASAP The ratio of the cost of a ticket to the number of tickets is 15:1. If the Cox family spent $45 ontickets, how many tickets did they buy? The frequency,f kilohertz of a radio wave is inversely proportional to its wavelength, Ym. The frequency of a radio wave that has a wavelength of 3000m is 100 kHz. Find (i) The frequency of a radio wave that has a length of 500m (ii) The wavelength of a radio wave that has a frequency of 800kHz QUESTION 5One card is selected from a standard deck of playing cards. Find the probability it is an ace or a 9.Give the answer as a fractionSHOW ALL WORK!WILL GIVE U BRAINIEST I need help pls pls pls Subtract the following complex numbers:(4 + 4i) - (13 + 17i) What are 4 important things that the Declaration of independence doPLEASE HELPOO 15points If you dont know the answer dont reply!! The introduction of the 8-bit computer expanded the number of bytes available for encoding. This led to the development of 4/7(21/8 x + 1/2) = -2(1/7 - 5/28x)What is x in decimal form? Which step leads toward conflict resolution? (I have no idea why my health teacher wants us to do this)A: letting each person tell his or her side B: punishing both sides until they agree C: letting one side ask questions, but not the other D: letting both sides fight it out after school what is Nausea?????? Please answer these two questions pandamille!You are the best at these type of answers...Tu entends les choses suivantes pendant la rcration.Complte chaque phrase avec la forme du verbe appropri.1. quelle heure est-ce que le cours dhistoire (commencer)?2. Est-ce que nous (manger) bientt?3. Pierre et Jean-Martin(lancer) des feuilles de papier.Ils dranger) toujours (always) les profs!4. Est-ce que tu (entendre) le chien?5. Nous (commencer) (corriger) les devoirs.6. Pierre et Jean-Martin (perdre) toujours leurs devoirs.7. Mireille et moi, nous (rpondre) souvent aux questions du prof.8. Nicole et lise, quest-ce que vous (attendre)?Isabelle and her friends are shopping for school supplies. Complete their sentences with the appropriate form of the verb or noun.1. Est-ce que tu (prfrer) le classeur bleu ou (rouge)?2. Est-ce que vous (acheter) les feuilles de papier jaunes ou (blanc)?3. Isabelle, est-ce quAlice et Ivan (acheter) les stylos noirs ou (violet)?4. Est-ce que vous (prfrer) la trousse verte ou (gris)