Solve the following system
algebraically:

Solve The Following Systemalgebraically:

Answers

Answer 1

Answer: A (8,4)

Step-by-step explanation:

X=8

2x+y=20

2(8)+y=20

16 +y = 20

Y= 4

(8,4)

Answer 2
Guy above is right I’m pretty sure

Related Questions

what is 0.716 divided by 5?

Answers

the answer would be 0.1432

— 2х + Зу = 6
solve for y

Answers

Answer:

y = 2/3x+3

Step-by-step explanation:

-2x+3y=6

you add 2x to the other side 3y=2x+6

and divide by 3

y = 2/3x+2

Y=6
hope this helps good luck

A music company offers lessons. They charge a registration fee of $30 and then $40 per lesson The equation y 40x + 30 represents the total cost y of x lessons. What is the y-intercept and what does it represent in the context of the problem?​

Answers

Answer:

THe y intercept  is 30 and it represents the registration fee

Step-by-step explanation:

If y=32 when x=8, find y when x=30.

Answers

Answer: 120

*How to solve*

Step 1: Find how many times larger 30 is than 8

30/8= 3.75

Step 2: Multiply by y

32x3.75=120


Hope this helps comment below for more questions:)

what is a simplified fractional eqeuvilent of a teminating decimal .68

Answers

Answer:

17/25

Step-by-step explanation:

0.68 is read as "sixty-eight hundredths."

Write sixty-eight hundredths as a fraction: 68/100

Now we reduce 68/100.

68/100 = 34/50 = 17/25

Answer:

17 /25

Step-by-step explanation:

0.68

is the same as  

6

10

+

8

100

=

68

100

68

÷

4

100

÷

4

=

17

25

As 17 is a prime number we stop at this point. srry if this in not correct

PLZ ANSWER IF U KNOW THE ANSWER!

SHOW YOUR WORK!

Which of the following transformations would show that ∆DEF is congruent to ∆JKL?

A). ROTATION
B). A REFLECION IN THE Y-AXIS
C). A REFLECTION IN THE X-AXIS
D). A ROTATION ABOUT THE ORGIN

Answers

I believe a reflection in the x-axis.

If you would to count the number of squares until you hit the y-axis, they would be the same, which means that you are looking at a reflection across the x-axis, for example F and L are 1 unit separated starting from the y-axis, and K and E are 8 units starting from the y-axis, meaning that is a reflection across the x-axis

Hope this helps :).

Part A: Explain why the x-coordinates of the points where the graphs of the equations y = ^2−x and y = ^4x + 3 intersect are the solutions of the equation 2^−x = 4^x + 3.
Part B: Make tables to find the solution to 2^−x = 4^x + 3. Take the integer values of x only between −3 and 3.


Part C: How can you solve the equation 2^−x = 4^x + 3 graphically?

Answers

Answer:

Post a photo

Step-by-step explanation:

Christopher is hanging Christmas lights along the perimeter of his house by using his 15 foot ladder. The base of the ladder is placed 4 feet away from the base of his house. How far up the house does his ladder reach?

Answers

Answer:

14.45 feet

Step-by-step explanation:

The set up is a right angled triangle;

The length of the ladder = hypotenuse = 15foot

The base of the ladder is the adjacent = 4feet

The height of th house is the opposite = x

Using the pythagoras theorem;

hyp² = opp² + adj²

15² = opp²+4²

opp² = 15²- 4²

opp² = 225 - 16

opp² = 209

opp = 14.45feet

Hence the ladder reaches 14.45 feet up the house

what is the answer to this radical equation
[tex]\sqrt{x + 13=7}[/tex]

Answers

Answer:

x = 36

Step-by-step explanation:

Given

[tex]\sqrt{x+13}[/tex] = 7 ( square both sides )

([tex]\sqrt{x+13}[/tex] )² = 7²

x + 13 = 49 ( subtract 13 from both sides )

x = 36

[tex]\sqrt{x+13}=7\\[/tex]

To solve the radical equation, completing the square all whole equation.

[tex](\sqrt{x+13})^2=7^2\\[/tex]

As defined, [tex](\sqrt{x})^2 =|x|[/tex]

Therefore, [tex](\sqrt{x+13})^2=|x+13|=x+13[/tex]  (Although Absolute Function gives 2 conditions, however - domain of radical function must be greater than or equal to 0. Meaning x < 0 for another condition doesn't apply.)

[tex]x+13=49\\x=49-13[/tex]

Move 13 to subtract.

[tex]x=36[/tex]

Therefore, the answer is x = 36.

I'LL MARK AS BRAINIEST !!! please hurry !!!
Which expression is equivalent to cos 16°?
A. sin 164°
C. sin 84°
B. sin 16°
D. sin 74°

Answers

sin 16 because cos and sin are similar

Answer: my answer for dat will be sin 16 degrees

Step-by-step explanation:

Who knows how to do this I TRULY NEED HELP

Answers

the ratio of length for both triangle is 4 .

thus ,

5*4 = 20

3x + 8 = 20
x = 4

28 / 4 = 7

y + 5 = 7
y = 2

What is the equation of the line through (2,3) and (0,-1)\

WILL GIVE BRAINLIEST

Answers

Answer:

y=2x−1

Explanation:

First, we need to determine the slope of the line. The formula for determining the slope of a line is:

m=y2−y1x2−x1

where m is the slope and the x and y terms are for the points:

(x1,y1) and (x2,y2)

For this problem the slope is:

m=3−−12−0

m=3+12m=42m=2

Now, selecting one of the points we can use the point slope formula to find the equation.

The point slope formula is:

y−y 1=m(x−x1)

Substituting one of our points gives:

y−1=2(x−0)y+1=2x

Solving for y

to put this in standard form gives:

y+1−1=2x−1

y+0=2x−1

y=2x−1

Lin’s family has completed 80% of a trip. They have traveled 40 miles. How far is the trip? *

Answers

Answer:

50 miles i believe

Step-by-step explanation:

Answer:

50 miles

Step-by-step explanation:

A gardener can trim a square lawn of side 50 metres in 4 hours. At the same rate, how long will it take him to trim a square lawn of side 25 metres?

A)1 hour
B)2 hours
C)2 hours 30 minutes
D)3 hours

Answers

Answer:

2 hours

Step-by-step explanation:

50 metres / 4 hours = 25 metres / x hours

cross multiply both sides

50x = 25(4)

50x = 100

divide 50 both side

x = 100/50

x = 2 hours

2hours because 25 is half of 50 and two is half of four

Click on photo to see the whole thing​

Answers

Answer:

cveryc

Step-by-step explanation:

ITS C im good11123

Answer:

c

Step-by-step explanation:

PLEASE HELP I’M GIVING 15 POINTS

Answers

Sorry but I don't see any pictureessss--

What am I supposed to be answering??

Welp-

Sawarasenai kimi wa shoujo na no?~

What is the slope of the line that passes through the points M(-3,5) and N (1,8)

Answers

Answer:

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

Step-by-step explanation:

What is the value of 0.6 + 0.3? Write your answer as a fraction in lowest terms. 0.6 is repeated.

Answers

Answer:

9/10 0.9.............

Answer:

1

Step-by-step explanation:

0.666...+0.3=0.999...

1

At Parkview Middle School, 6th grade students were given a survey about their favorite flavor of ice
cream. The results showed that 18 students stated that strawberry was their favorite ice cream
flavor. This number represented 12% of the total number of 6th grade students who took the survey.
What was the total number of 6th grade students who took the survey?

Answers

Answer:

5

Step-by-step explanation:

i think

i'm not sure what's the answer?
:)​

Answers

i believe the answer is  B.

Need help please!!!!!

Answers

Answer:

0 or 5/12

Step-by-step explanation:

with everything subtracted its 0 but with only subtracting 1/6 its 5/12

hElp Me PLaesssssssssssssssssssssssssssss

Answers

I think it is the first one

Use Properties to evaluate 3/5(-20÷1/3)(2/3)
A. 12
B. 24
C. -12
D.-24

Answers

the answer is to the problem is D

Answer:

D.-24

Step-by-step explanation:

In an experiment, the variable that is manipulated is called the?
Measurement variable
Explanatory variable
Response variable
Confounding variable

Answers

Response variable.....

Answer:

Explanatory Variable is the right answer it is the variaable being manipulated and observed.

Step-by-step explanation:

Order the following set of numbers from least to greatest.

3/4, 0.72, 69%, 0.63

Answers

0.63, 69%, 0.72, 3/4

Answer:

qwhich one do we answer, 1, 2?????????

Step-by-step explanation:

Which situation can the integer -71 ​represent?
Choose the correct answer below.
A) a bird flies 71 ft above sea level
B) you climb a mountain 71 ft above sea level
C) a fish swms 71 ft below sea level

Answers

the answers C because it is below sea level and sea level is 0 so it has to be negative

How many terms are in the expression below?

-4x + 7 + 2x + 10

Answers

Answer:

3

Step-by-step explanation:

(umm can anyone help me please) I’ll give brainlist <3

Answers

Answer:

12

Step-by-step explanation:

8 times 1.5

A jewelry artist is selling necklaces at an art fair. It costs $135 to rent a booth at the fair. The cost of materials for each necklace is $4.50. The artist is selling the necklaces at $12 each. The inequality LaTeX: 12n > 135 + 4.50n12 n > 135 + 4.50 n represents the situation in which the artist makes a profit. Will the artist make a profit if she sells 15 necklaces? Show how you know. Be sure to indicate what the variable n represents.

Answers

Answer:

The artist will make a profit if she sells 15 necklaces. This is known because 15 is greater than 11.625 (i.e. 15 > 11.625).

Step-by-step explanation:

Note: The question contains some error. The question is therefore rewritten before is answered as follows:

A jewelry artist is selling necklace at an art fair. It costs $135 to rent a booth at the fair. The cost of material for each necklace is $4.50. The artist is selling the necklace at $12 each. The inequality 12n>135+4.50 represents the situation in which the art is making the profit. Will the artist make a profit if she sells 15 necklaces? Show how you know. Be sure to indicate what the variable n represents.

The explanation of the answer is therefore given as follows:

Given;

12n > 135 + 4.50 .................... (1)

Where n represents the number of necklace that must be sold by the artist to make a profit.

Solving for n from equation, we have:

12n > 139.50

n > 139.50 / 12

n > 11.625 ..................... (2)

Equation (2) implies that more than 11.625 necklaces must be sold by the artist to make a profit.

When the artist sells 15 necklaces, it implies that n = 15.

Since more than 11.625 necklaces must be sold by the artist to make a profit, it therefore implies that the artist will make a profit if she sells 15 necklaces. This is known because 15 is greater than 11.625 (i.e. 15 > 11.625).

The distance on a map between North Carolina and Louisiana is 4 inches. If the map’s scale is 1 inch = 237 miles, what is the actual distance between North Carolina and Louisiana?

Answers

Answer:

Answer is 948 miles.

Step-by-step explanation:

distance in inches is 4 inches on map

1 inch = 237 miles

4*237=948  

948 is the actual distance between north Carolina and Louisiana

Other Questions
Q: Which of the following is NOT an INTEREST GROUP?A. The American Realtor AssociationB. The mediaC. The National Association for the Advancement of Colored People (NAACP) D. the National Rifle Association (FW.02]The diagram below shows a portion of the water cyle.YSpringAquiferWhat does Y most likely represent?O precipitationOrechargeOatmosphereOgroundwater HURRY AND ANSWERRR Which of the following was not one of the goverment branches of the Constitution of 1836? a. Legislative b. Judicial c. Executive d. General Council following data, what would be the value of x? How is the AFL-CIO funded How does photosynthesis depend on chlorophyll? Why did President Johnson deviate from his original plan of punishing Southern aristocrats by making it difficult for states to reenter the Union?A. Johnson lost interest in the issue of Reconstruction upon Lincoln's assassination.B. Johnson became more interested in the passage of the Thirteenth through Fifteenth Amendments.C. Johnson believed that the Union was paramount and the Southshould be represented.D. Johnson did not believe Southern landowners had done anything wrong leading up to the war.E. Johnson wanted to show his authority by passing the Civil Rights Bill of 1866, and needed the South to do it. Please help! I will Give Brainlyist! Is this statement true or false?Inner planets have many natural satellites.true false 15z-7=14z+12 What does Z equal 1Which fraction is equivalent to 7?oolCON324424 A study of the career plans of young women and men sent questionnaires to all 722 members of the senior class in the College of Business Administration at the University of Illinois. One question asked which major within the business program the student had chosen. The researcher examined the relationship between gender (men/women) and chosen major. The SPSS p-value was 0.0027. The conclusion of the statistical test is: Which factor has the least impact on the potential energy or kinetic energy of an object?A) MassB) SpeedC) TimeD) Height from the ground The President can interpret his constitutional powers. T OR F all me pointa COME QUICK FIRST GET CROWN THINGY Documents created with Calc are saved as which file extension?A..comB..odpC..orgD..odsPlease select the best answer from the choices providedABCD An equiangular triangle is ___ an acute triangle. Always, sometimes, or never SOMEONE PLZ HELP I HAVE TILL TMR TO GET A 49% up How did some Zhou rulers use the Mandate of Heaven to misuse their power? Tim took some seeds from red carnation flowers in his grandfathers garden to plant at his house what will most likey be the color of the flowers when they bloom A,red B. Pink C. White D red stripped