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

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

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:

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:

How many terms are in the expression below?

-4x + 7 + 2x + 10

Answers

Answer:

3

Step-by-step explanation:

hElp Me PLaesssssssssssssssssssssssssssss

Answers

I think it is the first one

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

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

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:

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:

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.

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).

i'm not sure what's the answer?
:)​

Answers

i believe the answer is  B.

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

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 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

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:

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:

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

Answers

Answer:

12

Step-by-step explanation:

8 times 1.5

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 :).

— 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

what is 0.716 divided by 5?

Answers

the answer would be 0.1432

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

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?~

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:

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

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

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:

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

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

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