Use substitution to solve the system.
y = 2x+8
-3x+2y = 13

Answers

Answer 1

Step-by-step explanation:

Use substitution to solve the system.

y = 2x+8______equation1

-3x+2y = 13______equation2

sub y into equation 2

-3x+2(2x+8)=13

-3x+4x+16=13

x+16=13

x=13-16

x=-3

sub X into equation 1

y=2x+8

y=2(-3)+8

y= -6+8

y=2

x= -3 y=2


Related Questions

plz help and thankkkkm you​

Answers

Answer:6(x+7= 42

Step-by-step explanation:

Hcf 16 and 24 find ???

Answers

Answer:

8

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

First Of All We Have Factorize These Two Numbers And Then We Will Find Their Highest Common Factor

16–2×2×2×2

24–2×2×2×3

So The Highest Common Factor is 8

That's Because Both Can be Divided by 8 and 8 is their Highest Common diviser.

Hope This Helps

Which set of transformations would prove ΔLMN ~ ΔPQR?

Answers

Answer:

B.  Dilate ΔPQR by the scale factor of 2 from point Q, and translate ΔP′Q′R′ by the rule (x + 1, y + 0).

Step-by-step explanation:

Dilations make the most sense for the shapes shown, and it can't be A because if you were to do y - 1 then it would be further away and would no longer be equivalent.

Answer:

would actually be answer D. Translate ΔPQR by the rule (x + 1, y − 1), and dilate ΔP′Q′R′ by a scale factor of 2 from point R.

Step-by-step explanation:

took the test :]

need help to determine if it's a undefined slope or it is a slope of line and what's the answer please and thank you ​

Answers

Answer:

It is slope of a line which is 4

Step-by-step explanation:

We are given that the given points are generated by a linear function. A linear function is ta straight line that can be represented by:

[tex]y = mx+b[/tex]

Here m is the slope

The slope of a line is given by the formula:

[tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]

In order to find the slope from the table we take any two pairs of inputs and outputs i.e. x and y

So here we take

(x1,y1) = (-6,-16)

(x2,y2) = (-5,-12)

Putting the values in the formula

[tex]m = \frac{-12-(-16)}{-5-(-6)}\\m = \frac{-12+16}{-5+6}\\m = \frac{4}{1}\\m = 4[/tex]

Hence,

It is slope of a line which is 4

Dwayne is trying to find the fraction represented by the repeating decimal 0.5. He completes the three steps shown:

1) Let x = 0.5

2) 10x = 5.5

3) 10x = 5.5
-x = 0.5
________
9x=5
what is the fraction equivalent of 0.5?
A. 9/5
B.4/9
C. 5/9
D. 5/13

Answers

Answer:

C. 5/9

Step-by-step explanation:

10x = 5.5

  -x = 0.5

9x = 5

x = 5/9

therefore, the answer is C. 5/9

The function t= 21.55 cos (pi/6(m-7)) + 43.75 models the average high temperature in degrees Fahrenheit each month

Answers

Answer:

B - 8

Step-by-step explanation:

Answer:

answer is letter b 8

Step-by-step explanation:

pls answer with formula. will rate 5.0

Answers

Answer:

A

Step-by-step explanation:

Its A, 7/12 - 19/60 is 4/15

Find the volume of the tetrahedron with the given vertices. (4, 0, 0), (0, 4, 0), (0, 0, 1), (4, 4, 1)

Answers

Answer:

[tex]\mathbf{V = \dfrac{16}{3}}[/tex]

Step-by-step explanation:

From the information given:

A = (4,0,0)   B = (0,4,0)    C = (0,0,1)   D = (4,4,1)

[tex]\overline{ AB}[/tex] = (0,4,0) - (4,0,0) = (-4, 4, 0)

[tex]\overline{ BC} =[/tex] (0,0,1) - (0,4,0) = (0, -4, 1)

[tex]\overline{ CD}[/tex] = (4,4,1) - (0,0,1) = (4, 4, 0)

The Volume of the tetrahedron [tex]V = \dfrac{1}{6} \bigg| AB \times BC \times CD \bigg|[/tex]

The Volume of the tetrahedron [tex]V = \dfrac{1}{6} \left\begin{vmatrix}-4,&4&0\\0,&-4&1\\4&4&0\end{vmatrix}\right[/tex]

[tex]V = \dfrac{1}{6}\bigg [ -4(-4 *0 - 1*4) -4(0*0-1*4) +0(0*4--4*4) \bigg ][/tex]

[tex]V = \dfrac{1}{6}\bigg [ -4(0 - 4) -4(0-4) +0(0+16) \bigg ][/tex]

[tex]V = \dfrac{1}{6}\bigg [ 16 + 16 +0 \bigg ][/tex]

[tex]V = \dfrac{1}{6}\bigg [ 32 \bigg ][/tex]

[tex]\mathbf{V = \dfrac{16}{3}}[/tex]

Which two points on the number line represent numbers that can be combined to make zero?

Answers

B and D

Because
-2 + 2 = 0

Answer:

A

Step-by-step explanation:

I took the test ;)

orden de las operaciones, la multiplicación es primero que la suma o la resta

Answers

Orden de operaciones

Calculate 1 + 3 + 5 +...+ (2n - 1) for several natural numbers n.

Answers

Answer:

The solutions for 1 + 3 + 5 +...+ (2n - 1), for the first 10 natural numbers are given in the explanation section below.

Step-by-step explanation:

To calculate 1 + 3 + 5 +...+ (2n - 1) for several natural numbers n, we will use several natural numbers to represent n.

For n= 1,

2n - 1 = 2(1) - 1 = 2 - 1 = 1

Hence, 1 = 1

For n = 2,

2n - 1 = 2(2) - 1 = 4 - 1 = 3

Hence, 1 + 3 = 4

For n = 3,

2n - 1 = 2(3) - 1 = 6 - 1 = 5

Hence, 1 + 3 + 5 = 9

For n = 4,

2n - 1 = 2(4) - 1 = 8 - 1 = 7

Hence, 1 + 3 + 5 + 7 = 16

For n = 5,

2n - 1 = 2(5) - 1 = 10 - 1 = 9

Hence, 1 + 3 + 5 + 7 + 9 = 25

For n = 6,

2n - 1 = 2(6) - 1 = 12 - 1 = 11

Hence, 1 + 3 + 5 + 7 + 9 + 11 = 36

For n = 7,

2n - 1 = 2(7) - 1 = 14 - 1 = 13

Hence, 1 + 3 + 5 + 7 + 9 + 11 + 13 = 49

For n = 8,  

2n - 1 = 2(8) - 1 = 16 - 1 = 15

Hence, 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 = 64

For n = 9,

2n - 1 = 2(9) - 1 = 18 - 1 = 17

Hence, 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 = 81

For n = 10,

2n - 1 = 2(10) - 1 = 20 - 1 = 19

Hence, 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 = 100

Luke likes running. He runs 2 1⁄2 miles every 1⁄2 hour. Complete the table to find out how far he runs in each time interval. Which one shows his unit rate (miles per hour)?

Answers

5, 7 and 1/2, 10, 20
Add 2 and 1/2 each 1/2 an hour

ANSWER IT OR ELSE JAMES CHARLES

Answers

Answer:

Hiiiiii sisterrrrs!!!!

Step-by-step explanation:

Answer:

HI SisTErS!

Step-by-step explanation:

Help me out hereeeeeeeeeeeeeeeeeeee

Answers

Answer:

[tex]8\frac{1}{5} acres[/tex]

Step-by-step explanation:

[tex]7\frac{1}{4} + 3\frac{1}{5} - 2 \frac{1}{4} \\\\7\frac{1}{4} - 2 \frac{1}{4} = 5\\\\then:\\\\7\frac{1}{4} + 3\frac{1}{5} - 2 \frac{1}{4} = 5 + 3\frac{1}{5} = 8 \frac{1}{5}[/tex]

the person on top is correct so b it is

f(x) = x2 + 4, find f(f(x)).
Help

Answers

Answer:

I have a baby cat for breakfast on Wednesdays

Step-by-step explanation:

belly boo boooooo

Ann bought peaches and tomatoes for $7.24. She paid $3.64 for all the peaches and $1.20 for each tomato. How many tomatoes did she buy?

Answers

Answer:

3 tomatoes

Step-by-step explanation:

To find the answer we do 7.24-3.24= 3.6

1.20×3= 3.6

Answer:

3

Step-by-step explanation:

7.24-3.64= 3.60

3.60:1.20=3 tomatoes

Who wanna help me ???

25 points and brainlest

Answers

Answer:

2/5

Step-by-step explanation:

8/20=2/5

Need help with this

Answers

Answer:

It's B. n3 - 4n - 4

Step-by-step explanation:

Hope this helps.. ;)

what is x?
6-4x=6x-8x-2

Answers

Answer:

x=4

Step-by-step explanation:

isolate the variable (x) by dividing each side by the factors that don't contain the variable

find the difference between 7⅖ and 2⅝​

Answers

Answer:

[tex]\frac{191}{40}[/tex] or 4.775

Step-by-step explanation:

In the middle school debate club, 40% of the members are in sixth grade. If there are 12 sixth graders in the debate club, how many total members are there?

Answers

Answer is definitely this
Answer=30

Answer 30

Step-by-step explanation:

I Just had a Test and it asked me that and I got an 100

solve the formula V=3/4 LWH for W

Answers

W= 3/4 divided by LH

Convert 1AA from hexadecimal to decimal.

Answers

1AA = 426

What an odd class...

Answer:

426 in decimal.

Step-by-step explanation:

Step 1) Count the digits in 1AA, which in this case is 3 digits, and convert each digit to Hex.

Step 2) Starting from the last number in Step 1, multiply the first number with 1, the second number with 16, and the third number with 256.

Step 3) Add up all the numbers you got in Step 2 to get the answer.

Following the instructions above, your math should look like this:

10 x 1 = 10

10 x 16 = 160

1 x 256 = 256

10 + 160 + 256 = 426

Thus, we got the following answer:

1AA = 426

when you do 5s you will​

Answers

Answer:

what does this mean

Step-by-step explanation:

????

PLEASE HELP
Select each situation that can represent a proportional relationship.

A) The total amount a babysitter makes who earns $10 an hour for babysitting r hours.

B) The total amount of snow that falls in d days when there's already 5 inches of snow on the ground.

C) The total amount Andrew saves when he saves $24 a week for w weeks.

D) The length in x months of a baby that grows 2 inches per month and was born 7 inches long.

Answers

a,c,d since there wont be the same amount of snow faling everyday

Using the concept of proportionality, it is found that these following situations represent proportionality:

A) The total amount a babysitter makes who earns $10 an hour for babysitting r hours.

C) The total amount Andrew saves when he saves $24 a week for w weeks.

In a proportional relationship, the output y is given by the input x multiplied by a constant k, that is:

[tex]y = kx[/tex].

Thus, when x = 0, y = 0.

In this problem:

In options A and C, when the input is 0, the output is also 0, thus they are proportional.In option B, when the input is 0 days, the output is 5 inches of snow, thus it is not proportional.In option D, when the input is of 0 months, the height is of 7 inches, thus also not proportional.

A similar problem is given at https://brainly.com/question/22846068

4 hundreds 6 hundredths - 3 hundredths
help

Answers

Answer:

7 hundredths

Step-by-step explanation:

add 4 to 6 and take away 3

Answer:

7 hundreds..................

Can somebody help me with this please I will mark brainlist

Answers

Answer:

i would say b but i also think but go with b

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

This is the only side whose length isn't given; for SSS congruence you need all 3.

HTH :)

find the value of x that makes m||n​

Answers

7x-23+11x+23=180
4x+0=180
4x/4=180/4
X=45

Answer: x=45

four big water bottles can hold 8 gallons of water.how much water can ten big water bottles hold

Answers

Answer:

20 gallons

Step-by-step explanation:

If 4 big water bottles can hold 8 gallons then just multiply 10x2 because that is double the amount.

Given that someone likes to play board games, is that person more or
less likely to take an interest in reading?

A. More
B.less
C.about the same
D. Can’t tell

Answers

Answer:

more

Step-by-step explanation:

brainliest please

Other Questions
Heat being transferred from a hot pan to our food while cooking is an example of... *conductionconvectionradiationtranspiration 11. At a fund-raiser, Ling raised $19 more than the total amount raised by the swim club. Thetotal amount raised by the swim club was $235. Circle the amount of money Ling earned.$66Ling earned $47E$32 PLEASE HELP I HAVE 5 MIN TO TURN THIS IN!!!!There are two gardens, garden A and garden B are shown in the image below.Determine if statement 1 is true or false and explain why the statement was true or false Write a paragraph explaining what community health is in details. Write another paragraph explaining what community nutrition health is and why is it important. charges competition fees of $250 plus $75 per week for classes. What is thetotal charge for 40 weeks? For every 2 hours, approximately $1,689 worth of product is sold to consumers. How much money will the company for an entire month (30 days)? I know its extremely late! But I seriously need help!!Kong took 15%15%15, percent fewer seconds than Nolan took to complete his multiplication timed test. Kong took 858585 seconds.How many seconds did Nolan take? If a single circular loop of wire carries a current of 63 A and produces a magnetic field at its center with a magnitude of 1.70 10-4 T, determine the radius of the loop. decrease in vapour pressure will cause?A. an increase in boiling point B. a decrease in boiling point C. no effect A bowling ball is dropped from a height of 50 feet. Write a function that gives the height h (in feet) of the bowling ball after 5 seconds. Find the height of the bowling ball after 1 second. How long does the bowling ball take to hit the ground? Round your answer to the nearest hundredth of a second. Whichmostaccurately describes how the Tang Dynasty influenced neighboring civilizations? I NEED HELP ASAP12. If I were a drop of water and I entered the cycle in the transpirationstage, where would I go next? Question: Philosophers during the Enlightenment of the 1600s and 1700sA- were most concerned with faith and religion.B- were disdainful of art and science.C- used emotion as a guiding principle.D- used reason to try to improve peoples lives. helpp dont just leave wrong answers! Cmo diras I used to learn?Question 8 options:aprendaaprendas aprendamos aprendan The table shows the specific heat capacities of various substances. How much energy is required to raise the temperature of 5g of air by 10C? Use the table below to help you. Lea wants to maintain strong bones as she ages. Which bone-strengthening activity should she incorporate into her current plan? Graph each function and determine the y-intercept, then use the graph to determine the approximate value of the given expression. (1/4)^x (1/4)^17 a.0; 1.7c.1; 0.7b.1; 0.1d.0; 1.3 Someone help me ASAP Look at picture please !! I really need help thank you !