Mathematics High School

Solve the system of equations by the addition method.
-3+y=15
-4-y=-1


A.
The solution is
nothing. ​(Simplify your answer. Type an ordered​ pair.)
B.
There are infinitely many solutions.
C.
There is no solution

Answers

Answer 1

Answer:

There is no solution

Step-by-step explanation:

Simply your answer. Like

Related Questions

What is the slope of the line?

Answers

Answer:

-3/2

Step-by-step explanation:

Rise/run

You count down/up however many until the line hits another point, and then go across until it matches. So I counted down 3 squares and over 2, and since it is going down it is negative.

I hope this helps :)

Answer:

all endjsj

dhsieosjskso

PLSS ANSWER
The electricity goes out in a house. The temperature in the house changes by 35 F in 5 hours On
average, by how many degrees is the temperature changing per hour?
7 degrees F

Answers

Lol it goes down 7 per hour

select the place where the digit 2
sits in this number 84,128,516,340

Answers

the digit 2 is in the ten millions place and it’s value is twenty million

Write an inequality for the graph.
The image is of a number line on which a line is drawn to the left of number -0.5 excluding it.

Answers

Answer:

hi .................

f(x) = 4/5x - 2
Find f(3)
[?

Answers

Answer:

f(3) = 2/5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = 4/5x - 2

f(3) is x = 3

Step 2: Evaluate

Substitute:                    f(3) = 4/5(3) - 2Multiply:                        f(3) = 12/5 - 2Subtract:                       f(3) = 2/5

Answer: 2/5

Step-by-step explanation:

We need to replace x with 3

f(x)= 4/5*(3)-2= (12/5)-2=(12-10)/5= 2/5

What is the correct value of x?

Answers

Answer:

x= -5

Step-by-step explanation:

First get X alone by dividing both sides by -4.2

-4.2x=21

-4.2. -4.2

then you're left with X = -5

To verify your answers, multiply -5 by -4.2

PLEASE LOOK AT PICTURE

Answers

Answer:

g(x)     x^2 - 5

------ = ---------   where x ≠ - 1/4

f(x)         4x+1

Step-by-step explanation:

f(x) = 4x+1

g(x) = x^2 - 5

g(x)     x^2 - 5

------ = ---------  

f(x)         4x+1

The denominator cannot equal zero

4x+1 ≠ 0

4x≠-1

x≠-1/4

g(x)     x^2 - 5

------ = ---------   where x ≠ - 1/4

f(x)         4x+1

Answer:

I think it's D

Step-by-step explanation:

The line models the cost of renting a bike. It costs​ $2 per hour plus a​ $4 deposit. Write an equation in​ slope-intercept form for the line where x is the number of hours a bike is rented and y is the total cost of renting a bike.

Answers

y=2x+4 because $2 per hour and then adding your $4 deposit

The equation of the line will be written as y=2x+4 because $2 per hour and then adding your $4 deposit.

What is an equation of the line?

An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.

The general form of the equation of the line:-

y = mx + c

m = slope

c = y-intercept

Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given that the line models the cost of renting a bike. It costs​ $2 per hour plus a​ $4 deposit.

The equation of the line is,

y = 2x + 4

Here,  $2 per hour and then add your $4 deposit.

To know more about an equation of the line follow

https://brainly.com/question/18831322

#SPJ2

pls help i will give 15 brainly points

Solve for 0​

Answers

Answer:

24.15°

Step-by-step explanation:

sinΦ = 18/44

Φ= 24.15°

Write an expression equivalent to 4(6x + 12), and state the property you used to write it.

Answers

Answer:

4(6x) + 4(12) Used distributive property

Step-by-step explanation:

Answer:

distributive property

Step-by-step explanation:

4(6x) + 4(12) Used distributive property

The perimeter of a rectangle is 36 cm and its area is 77 sq cm.
Find the dimensions of the rectangle, if the length is x and the
width is y.

Length=______cm

Width=_______cm

Answers

If the perimeter is 36 cm and the area is 77 cm then the length should be 7 and the width is 11. Hope I’m right :)

Answer:

y

Step-by-step explanation:

Solve the system of equations - x - y = 6 and 5x -7y=66 by combining the equations

Answers

Answer: Let's solve for x.

−x−y=6

Step 1: Add y to both sides.

−x−y+y=6+y

−x=y+6

Step 2: Divide both sides by -1.

−x

−1

=

y+6

−1

x=−y−6

Answer:

x=−y−6

Let's solve for x.

5x−7y=66

Step 1: Add 7y to both sides.

5x−7y+7y=66+7y

5x=7y+66

Step 2: Divide both sides by 5.

5x

5

=

7y+66

5

x=

7

5

y+

66

5

Answer:

x=

7

5

y+

66

5

Step-by-step explanation:

Is y= x/2 linear or nonlinear

Answers

its a linear

Linear means that the graph or drawing of the function is a straight line.

It have to be linear

Points D and E are midpoints of the sides of triangle ABC. The perimeter of the triangle is 48 units. Triangle A B C is shown. Point D is the midpoint of side A B and point E is the midpoint of side B C. The lengths of A D and D B are 3 t, the lengths of B E and E C are 4 t, and the length of A C is 7 t + 6. What is the value of t? 2 3 6 8

Answers

Answer:

2

Step-by-step explanation:

From the diagram attached :

AB = AD + BD = 3t + 3t = 6t

BC = BE + EC = 4t + 4t = 8t

AC = 7t + 6

Perimeter of the triangle = 48

Perimeter of a triangle (P) :

P = AB + BC + AC

48 = 6t + 8t + 7t + 6

48 - 6 = 6t + 8t + 7t

42 = 21t

t = 42 / 21

t = 2

Ans a.2

Step-by-step explanation:

big yes

The equation, y = 36/x, is an example of what kind of variation?
a.) direct variation
b.) inverse variation

Answers

Answer: Inverse variation

Joshua chose a mystery number. His mystery number is a factor of 42. Which number could be Joshua's mystery number?
A). 5.
B). 3.
C). 4.
D). 9.

Answers

Answer:

c. 3

Step-by-step explanation:

5 can only have factors like 10, 15. 4 is not it because 4x10 is 40 and it cant be 42 and then 9x5 is 45. Your welcome. Pls mark brainliest :)

Answer pls i need the answer ASAP if you know then pls answer i beg of you.

Answers

Answer:

A 19.8

Step-by-step explanation:

17. 2x2+ 71 = -163
19. -4x2 - 3 = 481
Directions: The roots of a quadratic equation

Answers

Answer: ayo i will do this tmrw just comment on here so i can go back and do this

Step-by-step explanation:

. The day after a national holiday, decorations were marked down 40%. Before the
holiday, a poster cost $5.75. How much did the poster cost after the holiday?

Answers

Answer:

$3.45

Step-by-step explanation:

5.75×.40=2.30

5.75-2.30=$3.45

What is the 9th term in the geometric sequence?
a(n)=-6⋅(2)^(n-1)

A. -1536
B. 1536
C. 3072
D. -3072

Answers

The first one will be your answer

A cell phone plan costs $200 to start, then charges $50 per month to maintain the account. How much will you pay for x months of cell phone use?

How much money will you have paid (total) after 14 months of cell phone service?
NEED HELP ASAP DUUE AT 4:00 pm EST

Answers

Answer:

$900

Step-by-step explanation:

add 200 to 50 times 14

Answer:

900

Step-by-step explanation:

200+50(14)

200+700

900

Ok so I really need help! Question:What is the percent of change from 70 to 21? Anwser Choices: A. 70% Decreace B. 49% Decreace C. 70% increase 49% increase

Answers

Answer:

A. 70% Decrease

Step-by-step explanation:

Before we find the percentage decrease, we need to find the difference first.

Difference = 70 - 21

                  = 49

Difference percentage = [tex]\frac{49}{70}[/tex] × 100%

                                      = 70%

I’ll mark you brainlist

Answers

it’s positive because it’s on the right side
It positive cause it in the right side of the grid.

Given f(x)=−3x+4, what is f(2)?

Answers

Answer:

Step-by-step explanation:

Maria earns $40 washing 5 cars. At this rate, how much does Maria earn washing 6 cars?​

Answers

Answer:

$240

Step-by-step explanation:

40 x 5 = 200

40 x 6 = 240                  (basically just adding forty dollars)

Alya loves to read. She read 90 pages in half an hour. How many pages does she read per minute?

Answers

Answer: 3

90 pages in 30 minutes so divide 90 by 30 and 90 divided 30 = 3

Hope this helps!

Answer: 3

Step-by-step explanation:

Step 1: Divide 90 by 30

Step 2: 90 divided by 30 = 3

Find the value of c so that (x+1) is a factor of the polynomial p(x)

Answers

Answer:

The answer is in the step by step below (image)

Step-by-step explanation:

A dolphin is 9 feet below the surface of the ocean. If its position can be recorded as −9 feet, what would the position of 0 represent? HURRYYYYYYYYY

Answers

Answer:

the sea line

I am guessing

Step-by-step explanation:

Answer: I think it will the surface of the water

fasttt ans nthis plsssssssssssssssssssssss

Answers

The answer is 12.5. You take the average of the boys and the average of the girls add them and then divide.

help me please it's due at 10:00​

Answers

Answer:

Step-by-step explanation:

1.

-3 + 8x ≥ 21

+3            +3

8x ≥ 24

divide both sides by 8

x ≥ 3

2.

d is false, because when you plug 5 in for x the solution would come out to be 19 < 17

Hope this helps!!! happy holidays!!

Answer:

1. x ≥ 3

2. d. 5

Step-by-step explanation:

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