Mathematics High School

PLEASE HEEELLLPP MEEE!!! MATH!!!

Solve the system of linear equations by subtraction!

Please and thank you!!!!
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PLEASE HEEELLLPP MEEE!!! MATH!!!Solve The System Of Linear Equations By Subtraction!Please And Thank

Answers

Answer 1

Answer:

( 5, 2)

Step-by-step explanation:

solve by subrtaction

x -2y = 1

-x -4y = -13

-6y = -12 divide both sides by -6

y=2

x-2y=1

x -2*2 =1

x=1+4=5

Answer 2

Answer:

(5,2)

Step-by-step explanation:

x=1+2y and x+4y=13

1+2y+4y=13

y=2

x=1+2*2

x=5

(x,y)=(5,2)

You're welcome!

Related Questions

3. Marissa thinks that there could be a pattern between the scale factor and perimeter of an image and its pre-image and between the scale factor and area of an image and its pre-image.
(a) Determine the perimeter and area of the picture and the perimeter and area of the mat.
(b) Create a table that shows the perimeter and area of the picture and the perimeter and area of the mat for scale factors of 2, 3, and 4.
(I will give brainliest) 50 points!

Answers

In linear equation, 1:16 the perimeter and area of the mat for scale factors.

What in mathematics is a linear equation?

A linear equation is a first-order (linear) term plus a constant in the algebraic form y=mx+b, where m is the slope and b is the y-intercept.

                               Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables.

Perimeter Ratio for scale factor 2: (picture)1:2 (mat)1:2

Ratio for scale factor 3: (pic) 1:3 (mat) 1:3

Ratio for scale factor 4: (pic) 1:4 (mat) 1:4

Area Ratio for scale factor 2: (pic &mat) 1:4

Ratio for scale factor 3:(pic&mat) 1:9

Ratio for scale factor 4:(pic&mat)1:16

Learn more about linear equation

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The perimeter of this rectangle is 156 cm.
What is the length and width of the
rectangle?
2x + 1
3x + 2

Answers

Answer:

x = 15

Therefore, the length and width are 31 and 47.

Step-by-step explanation:

Perimeter = (2x + 1) + (2x + 1) + (3x + 2) + (3x + 2) = 156

Simplified,

10x + 6 = 156

Subtract 6 from both sides, then divide by 10.

10x = 150

x = 15

To find the length and width, substitute 15 (the value of x) into the individual equations.

2(15) + 1 = 31

3(15) + 2 = 47

2x - 3
= 9
4
heleororidi

Answers

Answer:

x=6

Step-by-step explanation:

2x-3=9

ad three on both sides then divide 2 on both sides

2x - 3
= 9
4
heleororidi



Answer


X=6

PLEASE Help ASAaP will give brainlist

Answers

Answer: yes they probably are because they can be any size

help me please with this the picture is below

Answers

Answer:

6

Step-by-step explanation:

Last month, it took 3 gardeners 12 hours to fix up the gardens in the city's main square. This month, the city has a bigger budget and can hire 6 gardeners. Knowing that it took 12 hours to finish the job for 3 gardeners. It took 6 hours for 6 gardeners to fix up the gardens.

Answers

Answer:

So what is the question?

Step-by-step explanation:

Please help me I've been dying for twelve minutes.

Answers

1 goes on the first on -1 goes on the second

- 1/125 goes on the last one and -125 the third one

Find the zeros of y = x - 8x – 3 by completing the square. O A. x = 4 + /19 O B. X= -4/19 -4 O C. * = 31.77 D. X = +3​

Answers

Answer:

I got -3/7

Step-by-step explanation:

Which of the following is the linear parent function?
A. F(x) = x
B. F(x) = x^2
C. F(x) = |x|
D. F(x) = 2x

Answers

Answer:

A. F(x)=x

Step-by-step explanation:

Is the relation a function? {(3,4), (5,0), (2,4), (-5,-5)}

Answers

Answer:

Yes

Step-by-step explanation:

You are using the x values once, so it will pass the vertical line test.

{(3,4), (5,0), (2,4), (-5,-5)} the relation is a function.

What is a function?

A relation is a function if it has only One y-value for each x-value.

The relation is {(3,4), (5,0), (2,4), (-5,-5)}

Relation on a set may, or may not, hold between two given set members.

Three comma four comma five comma zero two comma four comma minus five comma minus five.

{(3,4), (5,0), (2,4), (-5,-5)} the relation is a function, because in (x,y) the x terms are not repeated.

For every y value there is a unique x value.

Hence, {(3,4), (5,0), (2,4), (-5,-5)} the relation is a function.

To learn more on Functions click:

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Which of the choices best describes this arithmetic sequence?
-3, 1, 5, 9, 13,...

Answers

Answer:

Add by 4

Step-by-step explanation:

-3+4=1

1+4=5

5+4=9

9+4=13

4.3x - 6 = 8 + 2.3x*

Answers

Answer:

[tex]x = 7[/tex]

Step-by-step explanation:

Follow the following steps

[tex]4.3x - 6 = 2.3x + 8 \\ - 2.3x \: \: \: \: \: \: \: \: \: - 2.3x \\ 2x - 6 = 8 \\ + 6 \: \: \: \: + 6 \\ 2x = 14 \\ \div 2 \: \: \div 2 \\ x = 7[/tex]

(FREE BRAINLIEST I NEED HELP PLEASE BAIL ME OUT)Find the constant of proportionality in a graph. Be sure to include the units with the value.





Constant of Proportionality =

Answers

Answer:

Fraction form:

[tex]\frac{3}{4}[/tex]

For every 3 dollars, there are 4 cookies

Step-by-step explanation:

To find the constant, find the rise (y-direction) and the run (x-direction). Of the two points on the line, the rise is 3 and the run 4. The constant is rise over run. So, it’s [tex]\frac{3}{4}[/tex]. This means that for every 3 dollars, there are 4 cookies.

Hope this helps! :)

What is the solution to the equation: 3(-2x - 1) = 2(x + 5)?

A. −3/4
B. 13/8
C. −13/8
D. 3/4

Answers

C

remove the parentheses

move the terms

collect like terms and calculate

divide both sides

and you get -13/8

As an estimation we are told 5 miles is 8 km.
Convert 100 km to miles.

Answers

Answer:

62.5 miles

Step-by-step explanation:

The answer is 62.5 miles because 5 divided by 8 is 0.625 and 0.625 multiplied by 100 is 62.5

What is the product of 2x + 3 and 4x ^2- 5x + 6?

Answers

Answer:

8x^3 +2x^2-3x+18

Step-by-step explanation:

b. For
y = 6x + (-2),
what is y when
X=-1

Answers

Answer:

y=-8

Step-by-step explanation:

y=6x+(-2)

y=6(-1)+(-2)

y=-6+(-2)

y=-8

Hope this helps !! If you got any questions about it lmk

3. Which polynomial has a leading coefficient of 4 and a degree of 3?

1 . 3x4 - 2x2 + 4x - 7
2. 4x4 - 3x3 + 2x2
3 .4 + x - 4x2 + 5x
4. 2x + x2 + 4x3​

Answers

Answer:

4

Step-by-step explanation:

find the value of of x sin(4x+30)°=cos(-2x+54)°

Answers

Answer:

fhxhfbccbbn

cfhjhkj

ffuhhoh

i need help quick! (number 7, NOT 8!)

Answers

Answer:

(-6, 18)

Step-by-step explanation:

What is the quotient?
(6x10^8) divided by (1.5x10^-4)
A.4x10^-32
B.4x10^-2
C.4x10^4
D.4x10^12

Answers

Answer:

D. 4x10^12

Step-by-step explanation:

Answer would be D

Which statement correctly compares the function shown on the graph wih the function y=5x + 5

Answers

Answer:

C the function on the graph has the same rate of change, but a lower starting point

Step-by-step explanation:

they both have the slope of 5, and the graph's y-intercept is -6. -6<5.

Answer:

I would say C. The function shown on the graph has the same rate of change but a lower starting points.

Step-by-step explanation:

I said C because if you look at the slope in the equation which is 5x and look at where the line intercepts the Y axis you can see that the rise if 5 (going up) and the run (going over) is 1 and that gives you the next point. But the 5 in the equation is higher than the starting point on the Y axis so that's why I chose the one that said the lower starting point.

hope this helps.

10 POINTS NEED HELP ASAP

Answers

Answer:

I believe it is D

Step-by-step explanation:

Hope this helps!

PLEASE HELP ME FASTT Lily likes to collect records. Last year she had 15 records in her collection. Now she has 18 records.
What is the percent increase of her collection?

Answers

Answer: it’s a 16.667% increase

Step-by-step explanation:

Because you increased from 15 to 18 which is 3 over a total of 18 now.

3/18=1/6=16.667%

Answer:

20%

Step-by-step explanation:

.15 is 1 percent of 15. .15 x 20 = 3. 15 + 3 = 18 PLS MARK ME BRAINLIEST

Someone answer this for me

Answers

Answer:

2 3/4

Step-by-step explanation:

I think is the right answer hope it helps

What are the slope and the y-intercept of the line shown in the graph?
A y-intercept - 2 and slope = -3
B. y-intercept = 2 and slope = 3
C intercept = 3 and slope = 2
D. intercept = -3 and slope = 2​

Answers

Answer:

B. y-intercept = 2 and slope = 3

Step-by-step explanation:

Answer:

y intercept is 2 and slope is - 3

Step-by-step explanation:

find the slope of the line passing through (3,7 ) and (6,11) asap​

Answers

it would be 4/3 hope this help

Answer:

4/3

Step-by-step explanation:

You're going to want to use the slope formula which is attached. Using this, you'll take the second y and subtract the first y from it. In other words, 11-7, which is 4. This will be the numerator. Then, you'll take the second x and subtract the first x from it. In other words, 6-3, which is 3. This will be the denominator. The final answer is [tex]\frac{4}{3}[/tex].

You missed 1 4questions on your math test and 3 out of 10 on your history test. In which class did you earn a higher percentage on your quiz?

Answers

Answer:

You got a higher score on your math test.

Step-by-step explanation:

100/10= 10 so 3/10 turns into 30/100 so if you got three wrong that’s 30 points off so you scored a 70%. While on the other test, 100/4=25 so each question is worth 25 points if you miss one you get a 75%. Making that higher score.

What is the third term of the expression
4x+8y+12xy

Answers

Answer:

12xy

Step-by-step explanation:

Each term is separated by a function sign. In this case, an addition symbol.

Find the slope and the y-intercept of the graph of the linear equation.
- 2x + y = 4

Answers

Make it y = mx + b
y = 2x + 4
The slope is 2
The y intercept is 4

Answer:

y=2x+4

Step-by-step explanation:

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