-5x - 2y = 13
-4x + y = 0
Solve by substation

Answers

Answer 1

Answer:

(x,y)=(-1,-4)

Step-by-step explanation:

-4x + y = 0

+4x         +4x

y=4x

-5x - 2y = 13

+5x          +5x

-2y = 5x+13

-2(4x) = 5x+13

-8x=5x+13

-5x -5x

-13x/-13=13/-13

x=-1

Thus:

y=4x

y=4(-1)

y=-4


Related Questions

can anyone help? i’ll mark brainliest

Answers

|4x + 4| = 15

First, let's get rid of the absolute value signs to get the first solution.

4x + 4 = 15

Subtract 4 from both sides

4x = 11

Divide each side by 4

x = 11/4 or 2.75

Now, let's get the solution by changing 15 to -15.

4x + 4 = -15

Subtract 4 from both sides

4x = -19

Divide both sides by 4

x = -19/4 or -4.75

Indentify the segment bisector of RS

Answers

Answer: line k is the segment bisector and the distance between RS is 34

How many solutions does this equation have?
-9p = 6 - 10p

Answers

Answer:

p=6

Step-by-step explanation:

-9p=6- 10p

-9p+10p=6

1p=6

p=6/1

p=6

Please Help :)
Set up the equation and find the length of BC.

Answers

Answer:

BC= 29

Step-by-step explanation:

If the total, AC, is 54 and AB is 25 subtract those two to find the last part, BC.

Makayla was given a box of assorted chocolates for her birthday. Each night, Makayla treated herself to some chocolates. There were originally 12 chocolates in the box and after 2 nights, there were 8 chocolates remaining in the box. Write an equation for C,C, in terms of t,t, representing the number of chocolates remaining in the box tt days after Makayla's birthday.

Answers

Answer: c = 12 - 2t

Step-by-step explanation:

help me find b and c

Answers

Answer:

b = 48 °, c = 46°

Step-by-step explanation:

c = 46 ° as between parallel lines, alternate opposite angles are equal.

since opposite angles are equal 94 ° = 46 ° + additional angel

therefore b = 94° - 46 ° = 48 ° , as sum of 2 internal angles of a triangle is equal to opposite exterior angle.

B is 48 in then c is 46 hope that help

What is the value of x in the proportion StartFraction 2 and one-fourth over x EndFraction = StartFraction 1 and one-half over 3 and three-fifths EndFraction?

Answers

Answer:

x = 10 4/5

Step-by-step explanation:

We want to find the value of x in the expression below;

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

The best thing to do here is to turn all the mixed fractions to improper fractions. Thus, we have;

9/2/x = 3/2/18/5

= 9/2x = 3/2 * 5/18

9/2x = 15/36

9 * 36 = 15 * 2x

324 = 30x

x = 324/30 = 10 8/10 = 10 4/5

Answer:

The correct answer is C or 0.5 or 1/2.

Step-by-step explanation:

I know this because I checked it 5 times.

Evaluate the expression.
10x - 3x2 when x = 2

Answers

Answer:

8

Step-by-step explanation:

Answer:8 or -16

Step-by-step explanation:

a) If you mean 10x - 3(x²) when x=2

10(2)- 3(2²)= 20-12=8

b) If you meant 10x - 3x²=

10(2)-(3 x 2)²= 20-6²

20-36=-16

Does anyone know the formula needed to solve this? Thank you

Answers

Which one do you need the formula?

HELP PLS WILL GIVE BRAINLISTE

Answers

Answer:

C.

Step-by-step explanation:

all you have to do is replace the x with 14 until the equation is true.

Answer: C and H

Step-by-step explanation:

plugging in for each equation for the first one C is the only one that comes up with a whole number and with H you divide and then add to get the answer :)

what is 1/4 to the power of 34???????

Answers

Answer:

I believe it is 3.3881318e-21 but you could round that

Step-by-step explanation:

If it takes a company 4 hours to build 1,300 cell phones, at the same rate it will
take the company n hours to build 39,000 cell phones.

Answers

39,000/1,300 = 30. 30 x 4 = 120 Hours

What is 15% of $79.99?

Answers

Answer:

11.9985

Step-by-step explanation:

79.99 x .15 = 11.9985

Answer:

Final price: $67.99
Discount: $12.00

Explanation:

Discount = Original Price x Discount %/100
Discount = 79.99 × 15/100
Discount = 79.99 x 0.15
You save = $12.00

Final Price = Original Price - Discount
Final Price = 79.99 - 11.9985
Final Price = $67.99

(2.569
3
2. Stephanie has 3 bags of soil to put in her garden. Each bag of soil will cover 125 ft.
How many square feet will Stephanie be able to cover if she uses all these bags of soil?
(7.3A)

Answers

i cant understand your question define briefly

where the digit 1 sits in this number.

712,662,522,097

Answers

Answer:

ten billionths place

Step-by-step explanation:

In the figure at right, line ​l​ is a line of symmetry, m∠B=8x-4°, and m∠D=2x+14°. Use this information to write an equation and solve for ​x​. Hint: Set ∠B = ∠D

Answers

Answer:x=3

Given: angle B = angle D

So, 8x-4=2x+14

8x-2x=14+4

6x=18

Therefore, x=3

(−2/3)x(1/6) please answer

Answers

Answer:

The answer would be -1/9. The decimal form would be -0. 111111. Hope this helped, and if it did, please like the answer and rate it. ty! :)

Answer:

-  1    

    9

Step-by-step explanation:

-     2      

  3  *   6  

- 2    

  18

= -  1    

      9

Determine the value of c that satisfies the given relation. 3c-1/3=c/2

Answers

Answer:

[tex]2c - 3[/tex]

Step-by-step explanation:

[tex]3c - \frac{1}{3} = \frac{c}{2} = 2c - \frac{1}{3} (2) = 2c - \frac{2}{6} = 2c - 3[/tex]

The perimeter of a square picture froame is 48 inches. One side length of the frame si 30.48 centimeters, how many centimeters are in an inch?

Answers

4

Step-by-step explanation:

Order the numbers from least to greatest.
7,-3, 5, -0.8, 0.8, 10.-2

Answers

-3, -2, -0.8, 0.8, 5, 7, 10

Find the missing dimensions. Use the scale factor 1 inch:12 feet. A plastic toy bird has a wingspan of 5 inches. What is the actual bird wingspan? USE NUMBERS ONLY.

Answers

Answer: 60 feets

Step-by-step explanation:

Given the question :

Find the missing dimensions. Use the scale factor 1 inch:12 feet. A plastic toy bird has a wingspan of 5 inches. What is the actual bird wingspan?

Using a scale factor of 1 inch : 12 feet

Wingspan of plastic toy bird = 5 inches

Calculate the actual bird wingspan

(1 inch / 12 feet) = (toy bird wingspan / actual bird wingspan)

( 1 inch / 12 feet) = (5 / actual bird wingspan)

Actual bird wingspan = 5 × 12

Actual bird wingspan = 60 feets

Easton paid $68 for his plastic interlocking block set. Colin paid $17 for his plastic interlocking block set. How many more times did Easton pay then Colin

Answers

Answer:

4 more times

Step-by-step explanation:

The question says that easton paid 68 dollars for the interlocking set

Colin paid 17 dollars for his own.

We are required to find how many more times easton paid than colin

To do this we divide 68dollars by 17 dollars

68/17

= 4 times

This tells us that compared to colin, easton overpaid for his own set by 4times. Easton paid 4 more times than colin

(2,-4) and (6,2).
Find the mid point

Answers

Answer:

The answer is

( 4 , - 1)

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

[tex]M = ( \frac{x1 + x2}{2} , \: \frac{y1 + y2}{2} )[/tex]

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(2,-4) and (6,2)

The midpoint is

[tex]M = ( \frac{2 + 6}{ 2} , \: \frac{ - 4 + 2}{2} ) \\ = ( \frac{8}{2} \: , \: - \frac{2}{2} )[/tex]

We have the final answer as

( 4 , - 1)

Hope this helps you

Answer:

The mid point must be (4,-1)

Step-by-step explanation:

mid point= [(X1+X2)/2 , (Y1+Y2)/2]

= [ (2+6)/2 , (-4+2)/2]

= [ 8/4 , -2/2]

= (4, -1)

Jennie has 160 stuffed bears in her collection. She is storing her collection of bears in containers that
hold 20 stuffed bears. So far, she has already filled 5 containers. How many stuffed bears have not been
put in a container for storage?

Answers

160
20x5=100
160-100=60
Answer=60

What is the distance between -3 and -2

Answers

Answer:

5

Step-by-step explanation:

if you subtract both of them in absolute value, you would get 5.

Also, if you take away the negatives, you would get your answer.

Answer:

1

Step-by-step explanination

The distance between -3 and -2 is one

-3-(-2)= -1

subraction sign turns to a positive and so does -2

What is the volume of a rectangular prism with l = 412 cm, w = 312 cm, and h = 6 cm?

Answers

Answer:

Step-by-step explanation:

V = l · w · h

V = (412)(312)(6)

V = (1872)(412)= 771,264 cm^3

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{771264 \: \: {cm}^{3} }}}}}[/tex]

Step-by-step explanation:

[tex] \star{ \sf{ \: length \: of \: a \: rectangular \: prism(l) = 412 \: cm}}[/tex]

[tex] \star{ \sf{ \: width \: of \: a \: rectangular \: prism \: ( \: w \: ) = 312 \: cm}}[/tex]

[tex] \star{ \sf{ \: height \: of \: a \: rectangular \: prism \: ( \: h \: ) = 6 \: cm}}[/tex]

Finding the volume of a rectangular prism having length ( l ) of 412 cm , width ( w ) of 312 cm and height ( h ) of 6 cm :

[tex] \bold{\boxed{ \sf{volume \: of \: a \: rectangular \: prism = lwh}}}[/tex]

[tex] \hookrightarrow{ \sf{volume \: of \: a \: rectangular \: prism \: = 412 \times 312 \times 6}}[/tex]

[tex] \hookrightarrow{\boxed{ \sf { volume \: of \: a \: rectangular \: prism = 771264 \: {cm}^{3} }}}[/tex]

Volume of a rectangular prism = 771264 cm³

Hope I helped!

Best regards! :D

~TheAnimeGirl

HELP!!! Is the relationship a function?

Answers

Answer:

No

Step-by-step explanation:

It is not a function because the x should never repeat the y can but not the x.

Answer:

not a function

Step-by-step explanation:

Find the midpoint of the line segment with the given endpoints. (-3.1, -2.8) and (-4.92, -3.3)

Answers

Answer:

Step-by-step explanation:

(-3.1 - 4.92)/2 = -8.02/2 = -4.01

(-2.8 - 3.3)/2 = -6.1/2= -3.05

(-4.01. -3.05) the midpoint

9.375, 9.75, 9.125 or 9.5 can you help me list each one from greatest to least

Answers

greatest to least:

9.75, 9.5, 9.375, 9.125

What is -4.26 + 1.3

Please help me thanks

Answers

Answer:

-2.96

Step-by-step explanation:

The answer is -2.96.
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