pls help this is hard

Two lines, C and D, are represented by the equations given below:
Line C: y = x + 14
Line D: y = 3x + 2

Which of the following shows the solution to the system of equations and explains why?

(6, 20), because the point does not lie on any axis

(6, 20), because both lines pass through this point

(3, 11), because one of the lines passes through this point

(3, 11), because the point lies between the two axes

Answers

Answer 1

Answer:

(6,20) because both lines pass through this point

Step-by-step explanation:

To solve this you can use the substitution method.

Since both of them are equal to y, substitute one of the equations for y, that way you have x+14 = 3x+2. From here you continue to simplify.

Eliminate x from either side of the equation. For example, subtract x from the side that says "x+14". (Make sure you are also subtracting it from the other side of the equal sign as well.

Once you do this you should now have 14 = 2x+2

In order continue, you now have to get x by itself. So now subtract 2 from both sides of the equation. After doing this, you should have 12 = 2x

You then simplify x by dividing both sides by 2. This will get you x = 6

Now that you have the x-value, substitute that into either of the two equations (it is recommended you substitute it into both equations to make sure you have the correct x-value). For example: If I substitute x into Line C's equation, I will now have y = 6 + 14.

6 + 14 is 20, therefore you're y-value is y = 20


Related Questions

Complete the equation of the line whose y-intercept is (0,5) and slope is -9.

y=

Answers

Answer: y=-9x+5

Step-by-step explanation:

slope intercept form is y=mx+b

simply plug in the values.

m= the slope

the slope you gave was -9, so plug that in to m.

b= the y intercept aka when the number touches the y axis. in this case, it would be 5.

y=-9x+5

necesitooo su ayudaaa​

Answers

Answer:

in1 ans is 5

in2ans is 9 ok

Im dying bro help The vertices of a quadrilateral are (2, 3), (3, 8), (7, 5), and (6, 2). Draw the quadrilateral in the coordinate plane.

Answers

Okay to the first number in the ordered pair is the x and the second is the y. So (x,y) when you put a dot on the coordinate plane such as (2,3), you have to go the the horizontal line which is x and go over right 2 spaces(depending on how many numbers is one space) then go up 3. Do that same thing for each of the order pairs. Eventually you will have 4 dots. Connect those dots then you will have the quadrilateral. I hope this helps you!

which scenario could be represented by the agebraic expression n- 13?​

Answers

Answer:

Lucy bought a large box of M&M cookies. She bought 13 less chocolate-chip cookies.

Step-by-step explanation:

The scenario has to represent 13 less than n. The "Lucy" scenario represents this with n (M&M cookies) - 13 (less chocolate-chip cookies).

Hope it helps!

The membership in the Lego Club decreased from 120 members in August to 82 members in October. What was the percent decrease from August to October?
Type your answer using the % key. Round to the nearest whole percentage if necessary.

Answers

Answer:

72% decrease I...guess?

120 members-60 members=50%

-70 should be approx=60%

-80  should be approx=70%

so 80 is around 70%, so I'd say 82 is 72%

I'm most likely wrong but i dunno maybe im right

Step-by-step explanation:

Answer:

32%

Step-by-step explanation:

((120 - 82) / 120) x 100 = 31.66 %

31.66% to the nearest whole percentage is 32%

Brad has $75 in his savings account and adds $25 every month he doesn't make any withdrawals from the account which inequality shows the number of months it would take Brad to save at least $200​

Answers

It would take Brad five months with adding $25 every month with a starting value of $75 in his bank account to save at least $200

The inequality representing the problem will be x+3 ≥ 8

What is inequality?

A relationship between two expressions or values that are not equal to each other is called inequality.

Given that, Brad has $75 in his savings account and adds $25 every month he doesn't make any withdrawals from the account, and saves at least $200.

Let the number of months be x,

75 + 25x ≥ 200

25(3+x) ≥ 200

x+3 ≥ 8

Hence, The inequality is x+3 ≥ 8

For more references on inequality, click;

https://brainly.com/question/28823603

#SPJ2

what's the sum of 15+(-19)​

Answers

-4

15+-19

15 to 19 is 4

19 is the larger than 15 so since 19 is negative your answer will also be negative

The blue dot is at what value on the number line?
3

Answers

Answer:

-3

Step-by-step explanation:

I think it’s -3 it’s been a while since I done these

Factor: m*(m+n)-3m*(m+n)^2

Answers

Answer:

−m(m+n)(3m+3n−1)

Step-by-step explanation:

2 over 3 multiplied by 15

Answers

Answer:

The answer is 10.

Step-by-step explanation:

2/3 times 15 is the same as 2/3 of 15.

2/3 of 15 is 10.

So, the answer is 10.

What is 4 wholes-2/5

Answers

Answer:

18/5

Step-by-step explanation:

4−

2

5

=

4

1

2

5

=

4

1

+

−2

5

=

20

5

+

−2

5

=

20+−2

5

=

18

5

(Decimal: 3.6)

Answer:

18/5

Step-by-step explanation:

4 wholes equal 20/5

20/5-3/5= 18/5

here is the question then the answers

Answers

Answer:

Domain is all real numbers.

Step-by-step explanation:

Domain is the x-values, as you see the function goes on forever on the x-axis because of the arrows.

25% of a population have pets. What is the probability that the next person you speak to has pets?

Answers

Answer: I d k

Step-by-step explanation:

Answer:

25

explanation:

just because

a) Simplify
a x b x 8
(1)
b) Simplify
y xyxy
(1)
c) Simplify fully
ex ex exexf
ex ex exfxf
(2)
Total marks: 4

Answers

Answer:

a. 8ab

b. y^3

c. e/f

Step-by-step explanation:

a; a * b * 8 = 8ab

b. y * y * y = y^3

c. we cancel out the e and f

e^4/e^3 * f/f^2

= e/f

Can you guys figure out the linear function for this table, please?

Answers

Answer:

y = 6x + 10

Step-by-step explanation:

This is because the slope is 6 and the y intercept is 10, therefore the answer is y = 6x + 10

Rich also has £400 pounds invest 3% compound interest . How many years does he need to invest the money to get at least £475

Answers

Answer: 6 years

Step-by-step explanation:

Formula to calculate compound amount: [tex]A=P(1+r)^t[/tex], where P= Principal , r=rate of interest, t= time

Given: P = £400, r = 3% = 0.03 , A= 475

Required equation: [tex]400(1+0.03)^t\geq475[/tex]

[tex]400(1.03)^t\geq475\\\\\Rightarrow\ (1.03)^t\geq\dfrac{475}{400}\\\\\Rightarrow\ (1.03)^t\geq1.1875[/tex]

Taking log on both sides , we get

[tex]t \log 1.03\geq\log1.1875\\\\\Rightarrow\ t(0.0128372)\geq(0.0746336)\\\\\Rightarrow\ t\geq\dfrac{0.0746336}{0.0128372}=5.81385\approx6[/tex]

Hence, he needs to invest the money for 6 years to get atleast £475.

Can you solve for a, b and c?
20 – 3b = -5
4a + 3b = 17
50 - 2a = 1

Answers

Answer:

c  =  1 ,  a  =  2,  b  =  3

Step-by-step explanation:

In the adjoining figure , APB and AQC are equilateral triangles. Prove that PC = BQ. ( Hint : [tex] \triangle[/tex]APC = [tex] \triangle[/tex]AQB, then PC = BQ)
~Thanks in advance ! ツ

Answers

Answer:

See Below.

Step-by-step explanation:

Statements:                                                           Reasons:

[tex]\displaystyle 1)\text{ } \Delta APB \text{ and } \Delta AQC \text{ are equilateral triangles}[/tex]      Given

[tex]\displaystyle 2) \text{ } m \angle PAB = 60[/tex]                                                     Definition of equilateral.

[tex]3)\text{ } m \angle QAC = 60[/tex]                                                     Definition of equilateral.

[tex]4)\text{ } m\angle PAB = m\angle QAC[/tex]                                          Substitution

[tex]5)\text{ } m\angle PAC=m\angle PAB+m\angle BAC[/tex]                       Angle Addition

[tex]\displaystyle 6)\text{ } m\angle QAB=m\angle QAC+m\angle BAC[/tex]                       Angle Addition

[tex]7)\text{ } m\angle QAB=m\angle PAB+m\angle BAC[/tex]                       Substitution

[tex]\displaystyle 8)\text{ } m\angle PAC=m\angle QAB[/tex]                                         Substitution

[tex]9)\text{ } PA=BA[/tex]                                                          Definition of equilateral

[tex]10)\text{ } AC=AQ[/tex]                                                        Definition of equilateral

[tex]\displaystyle 11)\text{ } \Delta PAC \cong \Delta BAQ[/tex]                                            Side-Angle-Side Congruence*

[tex]\displaystyle 12)\text{ } PC=BQ[/tex]                                                        CPCTC

* SAS Congruence:

PA = BA

∠PAC = ∠QAB

AC = AQ

The book rack sold 24 paperbacks on Saturday, 17 of them mysteries. What percent of the books were mysteries?

Answers

Answer:

About 71% of the books were mystery books

Step-by-step explanation:

To find the percentage of something you simply divide the amounts. 17 of the 24 books were mystery so to find the percentage of mystery books you do 17 divided by 24

17/24= 0.70833333333

and round it to 71

-2(4x-1)-7=5

whats the next step in solving this equation

Answers

Answer:

Using distributive property is the next step in solving the equation

Step-by-step explanation:

-2(4x-1)-7=5

-8x+2-7=5

Answer:

The next step would be to do distributive property.

Step-by-step explanation:

-2(4x-1)-7=5

-8x + 2 - 7 = 5

-8x - 5 = 5

     +5    +5

-8x = 10

/-8     /-8

x= -5/4

 or

x = -1 1/4

Hope this helps and I hope u have an Amazing day!!

Elise had a credit card balance of -$120. She
made a payment of $70 this month. Write and
then evaluate a SUBTRACTION expression to
find her new credit card balance.

Answers

Answer:

15.50+n=325.00

Step-by-step explanation:

15.50+what she had in the bank already = what she has now

Step-by-step explanation:

Elise's new credit card balance is $-50.

Elise's credit card balance is negative. This means that she has withdrawn more money than she has deposited. Elsie thus owes the bank $-120. If she paid $70, the amount she owes would be reduced by $70.

Elise's new credit card balance = credit card balance + payment made

$-120 + $70 = $-50

A similar question was answered here: https://brainly.com/question/5636975

Determine whether the triangles are congruent by AA., SSS, SAS, or not similar.

Answers

Step-by-step explanation:

they are similar by AA .

plz mark my answer as brainlist plzzzz . hope this will be helpful to you.

3+2=___

4+2=___

8-8=___

Answers

Answer:

1)5

2)6

3)0

Step-by-step explanation:i subtracted

3+2= 5
4+2=6
8-8=0
if u put up 3 fingers then put 2 more up you get 5
if u put up 4 fingers then put up 2 more u get 6
if u put up 8 fingers and take 8 away u have 0 fingers left

What is the equation of the line that has a
slope of 5 and a y-intercept of -1?

Answers

Step-by-step explanation:

y= mx+b

where m is the slope , and b is the y intercept

y= 5x -1

Alfred has 21 boxes of pencils. He is dividing them equally among four students. How many boxes of pencils will each student receive? Write your answer as a decimal.

Answers

Answer:

5.25

Step-by-step explanation:

21/4 = 5.25

pls give me brainliest :)

NEED ANSWERS WILL MAKE BRAINLIEST!

Answers

Answer:

1

-4

none

none

6

3

min

2

-5

-2

max

-1

0

-5

none

none

Step-by-step explanation:

f(4) is just asking what the y value is when x=4 which is 1

f(-3) = -4

This has no minimum or maximum because the range is all real numbers (the y value goes to infintiy and negative infinity)

f(3)=6

f(0)= 3

This has a minimum because the lowest y value possible is not infinity (it's 2)

f(1)= -5

f(4)= -2

max= -1

f(-1)= 0

f(6)= -5

none

none

Solve 7x − 2y = −3
14x + y = 14

Answers

Move the constant to the left-hand side by adding its opposite to both sides, The sum of two opposites equals
7x-2y+3=0

Help I’m stuck on this

Answers

Did you just say you were stuck step-sis?

Answer:

it is 6,000 diffrence

Step-by-step explanation:

Which expression is equivalent to 8(7m - 9p)?

Answers

Answer:

8(7m-9p) = 8(7m) - 8(9p)

= 56m - 72p

Let me know if this helps!

Answer:

56m-72p

Step-by-step explanation:

8(7m-9p) = 8*7p + 8*-9p = 56m-72p

Please show work and help me please

Answers

Answer:

31.4 in

Step-by-step explanation:

the formula for circumference is 2*[tex]\pi[/tex]*radius. Since the diameter (which is the radius multiplied by 2) is labeled we can divide 10 by 2 to get the radius. 10/2 is 5. Since pi is an infinite number, we round it to 3.14. Then, plug in the numbers. The expression will be 2*3.14*5. 2* = 10 and 10 * 3.14 you can just move the decimal so the answer is 31.4.

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