Solve the system by substitution.
y = 8x
y = 4x + 8

Answers

Answer 1

Answer:

y = 16

x = 2

Step-by-step explanation:

y = 8x

y = 4x + 8

then, by substitution:

8x = 4x + 8

8x - 4x = 8

4x = 8

x = 8/4

x = 2

y = 8x

y = 8*2

y = 16

Check:

y = 4x + 8

y = 4*2 + 8

16 = 8 + 8


Related Questions

The point (12.-5) is
how many units away from the origin

Answers

Answer: it 13 units

Let M (-12, 5) be the given point and O (0, 0) be the origin. = 13 units.

Step-by-step explanation:

hope this helps have a nice night ❤️❤️❤️❤️

riddle: there are 10 copy cats in a window how much are left. Cation this is math!!!

Answers

Answer:

20 cats

Step-by-step explanation:

ez lol

Answer:

i dont know 10

Step-by-step explanation:

24 is 3/4% of what number

Answers

24 is 3/4 of the number 32

Answer:

32

Step-by-step explanation:

Alright, so think of the "what number" as x in this case. (Or any number/symbol you choose.)

So our simple equation looks something like this:

[tex]24= x *\frac{3}{4}[/tex]

So, to find out what the "what number" would be we'd flip the fraction around/find the reciprocal and multiply 24 by it. That gives us "x" or the number we're missing.

So: [tex]24 * \frac{4}{3} = x[/tex]

Doing the simple math we get:

[tex]24 * \frac{4}{3} = 32[/tex].

32 is your answer.

Hope this helps and have a nice day! Sorry I'm not great at explaining it!

What expression is equivalent to 6(3x+4)?

Answers

Hey there!

“Which expression is equivalent to 6(3x + 4)

6(3x + 4)

6(3x) + 6(4)

6(3x) = 18x

6(4) = 24

= 18x + 24

Possible answer: 18x + 24 ☑️

Good luck on your assignment and enjoy your day!

~Amphitrite1049:)


Jose bought a new car 2 years ago for $18,000. The value of his car decreased exponentially by 17% and is now
valued at about $12,400.
Solve Part A please

Answers

Answer: D

Step-by-step explanation: On the first part, if it decreases by 17% each year, that means its value is 83% of what it was. You forgot to say that the car was bought 2 years ago.

Thus, the answer is D

For the second, just use the same logic to get 18000*0.75^4

please help and thanks!

Answers

Answer:    D: 17.3

Step-by-step explanation:

I believe its D because the house and the ground is a 90 degree angle, and at 60 degree angle is a 20 foot ladder. alright then 90 plus 60 = 150 degrees.

then add the twenty foot ladder with each choice for the answer:

A: 20 + 6.1 = 26.1

B: 20 + 10.0 = 30

C: 20 + 14.1 = 34.1

D: 20 + 17.3 = 37.3

The answer would be D because it is the closer number to 150. Because it says " which is the closest height up the house the ladder reaches?" The answer is D the closest number. I HOPE THIS HELPS YOU! =D

whats an"an amount, shared equally with 4 people "

Answers

well if that's in a math problem then its division. Because you are sharing equally.

Which of these functions is not a linear function? Why?
f(x)=x-x
f(x)=3x
f(x)=x3
f(x)=23x-2
how am i supposed to know-

Answers

Answer:

f(x)=x3

Step-by-step explanation:

If you meant f(x)=x3 by f(x)=x^3 then that would be a cubic equation and not linear?

2)
A liter of water has a mass of 1 kilogram. What is the mass of the water in grams?
A)
1
B)
10
100
D)
1000

Answers

D /////////////////////////////

Please help! (i'll give the best answer brainliest)

Answers

Answer:

I think False umm...

i'm so so sorry if im rong

Step-by-step explanation:

This statement is in fact true.

what is 1,763.6 rounded to the nearest hundredth

Answers

Answer:

1,763.6

Step-by-step explanation:

There is no hundredths place, therefore the number would just stay the same.  

The decimal number 1,763.6 rounded to the nearest hundredth will remain the same.

What is the rounding of a number?

The action of forming anything into a circle. Mathematics. the act of substituting a number with one that is roughly equivalent in value but has fewer digits: To the closest dollar, rounding $27.68 results in $28. a comparable procedure that identifies one of several rules.

The decimal number is given below.

⇒ 1,763.6

In the decimal number, there is no hundredth place, therefore the number would just stay the same.  

The decimal number 1,763.6 rounded to the nearest hundredth will remain the same.

More about the rounding of a number link is given below.

https://brainly.com/question/19031319

#SPJ5

HELPP ITS MY LAST QUESTION AND IM TIMED

Answers

Answer:

the correct answer is A less than my good sir ( or ma'am )

Step-by-step explanation:

which quadrilateral makes this statement true? Quadrilateral ABCD

Answers

Answer:

A.

Step-by-step explanation:

Help please it’s a grade

Answers

For the right angle triangles to find the hypotenuse square both the sides that are given and add them together, then you need to square root your answer
If you are finding a different side like triangle 2 use a^2 = c^2 - b^2 where a is the side you are finding, c being the hypotenuse and b being the other side.

the table shows a summary of the number of spots counted on 20 ladybug calculate the mean number of spots per lady bug

Answers

Answer:

bcbdjdsjxbxifjfbdbdbbxbxhxhdhdhbdbdbxbxbxbxbbxnxnxnxx

Solve each inequality -6b + 2 < 56

Answers

Answer:

b > - 9

Step-by-step explanation:

i hope i did okay i try my best

What value of x would make lines land m parallel?
50
150°:
55°
75

105
m
55

Answers

Answer:

x = 75

Step-by-step explanation:

If the lines were parallel, then

the angle on the left of the triangle = 55° ( alternate angles )

The angle at the top of the triangle = 50° ( vertical angles )

x = 180 -(55 + 50) ← sum of angles in a triangle = 180°

x = 180 - 105 = 75

For the lines to be parallel then x = 75

Answer:

75

Step-by-step explanation:

will give 60 points and brainliest

Answers

I am not sure what you mean, but x=4

In order to find the value of x, we can write the following statements and reasons:

Triangle PQR:

1. Statement: PS = PS

Reason: Reflexive property of equality

2. Statement: angle PSQ is congruent to angle PSR

Reason: Given

3. Statement: SQ is equal to SR

Reason: Given:

4. Statement: Triangle PSQ is congruent to triangle PSR

Reason: Case SAS of congruency

5. Statement: PQ is congruent to PR, so PR = 8

Reason: Corresponding sides of congruent triangles

Quadrilateral VSTU:

1. Statement: VT = VT

Reason: Reflexive property of equality

2. Statement: angle SVT is congruent to angle UVT

Reason: Given

3. Statement: angle VST is congruent to angle VUT

Reason: Given

4. Statement: Triangle VST is congruent to triangle VUT

Reason: Case AAS of congruency

5. Statement: ST = TU

Reason: Corresponding sides of congruent triangles

So we have 5z = 2z + 3. Solving for z, we have z = 1, so ST = 5z = 5

Ax + By > C
In Which Form is this linear inequality?

Answers

Answer: A

Step-by-step explanation:

Is this a rational or irrational number

Answers

Answer:

Irrational.

Step-by-step explanation:

∛30 cannot be written as a fraction.

PLEASE HELP!!

What is the y-intercept?

Answers

Judging by your graph, it should be 30 :)

Answer:

y- intercept = 30

Step-by-step explanation:

The y- intercept is the value on the y- axis (vertical) where the graph crosses

Each square on the vertical has a value of 10

The graph crosses the vertical axis 2 squares below 50.

Then y- intercept = 30

You have $500 in a savings account. How long will it take to double that
amount at an 8% annual interest rate?

Answers

Answer:

Step-by-step explanation:

The formula for compound annual interest is  A = P(1 + r)t  where  

A = Accumulated or final amount  (double $500 = $1000)  

P = Principal or original amount  ($500)  

r = Rate as a decimal (0.08)

t = Time in years  

1000 = 500(1 + 0.08)t

2 = 1.08t  

Take the logarithm of both sides.  I prefer the natural logarithm ln, but if you're more comfortable with base 10 logs they will work just as well  

ln(2) = ln(1.08t)  

ln(2) = t*ln(1.08)

t = ln(2)/ln(1.08)

t = 9.0065 years  

Check:  500*1.089.0065 = $1000

Please help! Will mark brainliest

Answers

Answer:

Marylin has the highest score: 87.5%

Step-by-step explanation:

Alyssa score: 21/25 = 84%

Jerrod: 80%

Francis: 88%

Marylin: 7/8 = 87.5%

Paula runs a day care center. Of the last 16 children to enroll at
the day care center, 8 of them have been babies. What is the
experimental probability that the next child to enroll will be a
baby?
Write your answer as a decimal rounded to the nearest tenth.

Answers

Answer:

0.5

Step-by-step explanation:

P(event) = number of times event occurs/ total number of trials

Hi, You are the person I answered last time!

P(event) = 8/16

8/16 simplified is equaled to 1/2.

1/2 is equaled to 0.5

Again, I'm pretty sure this is right because it says experimental probability... I hope this helps!

cantidad de cajas cantudad de lapises​

Answers

Answer:

no lo sé

Step-by-step explanation:

Number of boxes number of pencils?

No hay algo en concreto :'v

x + 6= 2x − 11
.........

Answers

17 is your answer. the step by step is in the picture

The answer to your question is: x = 17

Are the following triangles similar or not similar?

Answers

No, 47 equals 47, 66 does not equal 67, hence not similar

Please help it's due today. Also if you don't know please don't answer.​

Answers

I believe it's x= 20, hopes it help!

Answer:

x=20

Step-by-step explanation:

4 5 x

( 3 ) = 3

20 x

3 = 3

x = 20


question “If y =5, what is the value of the following expression

7+2y²

Answers

Answer:

57

Step-by-step explanation:

Hey there!

To find the solution, plug in 5 for y. When you do this you get, 7+2(5)². Square the 5 to get 25. And then you att 7+2(25). 25 x 2 is 50. 50 +7 is 57.

Hope this helps :)

Answer : 57

Step-by-step-explanation: I answering this for the points : )

What is the value of sin 43° to the nearest ten-thousandth?

Answers

Answer:

0.6819

Step-by-step explanation:

The value of sin 43° to the nearest ten-thousandth will be 0.682

Sine functionIn trigonometry, the sine function can be defined as the ratio of the length of the opposite side to that of the hypotenuse in a right-angled triangleThe sine function sin x is one of the basic functions encountered in trigonometry

How to solve this problem?

The steps are as follow:

First take calculator and press the sin function buttonAfter entering the sin function button enter the value 43After entering the value 43 press the equal to buttonAnd the answer will be shown on screen will be 0.681999...As in the question stated we have round off to the nearest ten-thousandth

So, the  value of sin 43° to the nearest ten-thousandth will be 0.682

Learn more about sine function here:

https://brainly.com/question/9565966

#SPJ2

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