PLEASE HELP FAST! Solve for Y in the following system of equations!
X-y=-1
3x+5y=21
A.) 2
B.) 3
C.) 9
D.) 12

PLEASE HELP FAST! Solve For Y In The Following System Of Equations! X-y=-13x+5y=21A.) 2B.) 3C.) 9D.)

Answers

Answer 1

Answer:

B.) 3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

x - y = -1

3x + 5y = 21

Step 2: Rewrite Systems

x - y = -1

Add y to both sides:                    x = y - 1

Step 3: Redefine Systems

x = y - 1

3x + 5y = 21

Step 4: Solve for y

Substitution

Substitute in x:                              3(y - 1) + 5y = 21Distribute 3:                                   3y - 3 + 5y = 21Combine like terms:                     8y - 3 = 21Add 3 to both sides:                     8y = 24Divide 8 on both sides:                y = 3

Related Questions

Can someone answer my English question, please :/ I will mark you brainliest

Answers

Yeh what is it do you have any questions I can help you with

Answer:

Step-by-step explanation:

solve for the equation 3r = -24

Answers

Answer:

yes

Step-by-step explanation:

bc Quick maths

Answer:

r=-8

Step-by-step explanation:

Which fraction is the largest?

Answers

Answer:

17/30

Step-by-step explanation:

A rectangular computer monitor is measured by the length and width of its display resolution. Three different monitors are described below. Monitor A has a display resolution of 640 pixels by 480 pixels. Monitor B has a display resolution of 800 pixels by 600 pixels. Monitor C has a display resolution of 1,280 pixels by 800 pixels. Which of the monitors are similar, based on their display resolution

Answers

Answer: Monitors A and B

Step-by-step explanation:

The similar monitors based on display resolution are those with similar ratios.

Take the ratios to their simplest forms to see which are similar.

Monitor A

= 640 : 480

= 16 : 12

= 4 : 3

Monitor B

= 800 : 600

= 8 : 6

= 4 : 3

Monitor C

= 1,280 : 800

= 32 : 20

= 8 : 5

Monitors A and B are similar as they have the same display ratio.

Question is below.
Math

Answers

Answer:

B

Step-by-step explanation:

2x+3y=12

3y=12-2x

y=-2/3x+4

B

Hope this helps plz hit the crown :D

The answer is b step by step

-3x + 7 (-6 – 5c)
C= 7
x = -9

Answers

Answer:

=−260

Step-by-step explanation:

= -260 that is the answer

Which equation represents the hanger below. x represents the triangles while y represents the square

Answers

Answer:

Which equation represents the hanger below. x represents the triangles while y represents the square

Answer:

Step-by-step explanation:

so first divide

multiply and subtract

and think a little

there its easy :D

the dimensions of a rectangular plot of land are 28.3m by 53.7m. Find
1) the perimeter of the land, correct to the nearest 10
2) the area of grass needed to fill up the entire plot of land, correct to the nearest 100m^2


also show the steps​

Answers

Answer:

1. Answer is 160 m

2. Answer is 1500 m²

Step-by-step explanation:

perimeter = 2(l+b)

which implies 2( 28.3 + 53.7) m = 160 m

Area is length× breadth

which implies 28.3× 53.7 = 1500 m²

Please mark me brainliest

Why is the first step when solving
2x – 15 - 4x = 3 to combine like terms?

Answers

Answer:

-9 is the final answer

Step-by-step explanation:

2x-4x=-2x

so the equation would be -2x-15=3

add 15 to both sides -2x=18

divide both sides by -2


What is the r-value of the following data to three decimal places?

Answers

Answer:

.953

Step-by-step explanation:

took it on a test and got it right

Answer:

.953

Step-by-step explanation:

Write an equation in point slope form of the line that passes through the point (2,-8) and had a slope of 4

Answers

Point slope: y - y1 = m(x - x1)
Plug those in
Solution: y + 8 = 4(x - 2)

The equation of a line in point-slope form is  (y + 8) = 4(x - 2).

What are lines and their slopes?

We know lines have various types of equations, the general type is

Ax + By + c = 0, and the equation of a line in slope-intercept form is

y = mx + b.

Where slope = m and b = y-intercept.

the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.

Given, A line passes through the point (x₁, y₁) ⇒ (2,-8) and had a slope of 4.

We know the equation of a line in point-slope form is (y - y₁) = m(x - x₁).

∴ The equation of this line is (y + 8) = 4(x - 2).

learn more about lines and slopes here :

https://brainly.com/question/3605446

#SPJ2

Write 27 as a product of primes.
Use index notation when giving your answer.

Answers

27 = 1 x 27, or 3 x 9. Factors of 27: 1, 3, 9, 27. Prime factorization: 27 = 3 x 3 x 3, which can also be written 27 = 3³.

Answer:

3, 9, 3 and 3

Step-by-step explanation:

27

3 and 9

3 and 3

I don't know how to do index notation. I apologize.

What is equivalent to (6xp)+3

Answers

Answer:

1(6xp+3)

Step-by-step explanation:

Multiply

Using a layaway plan, Bill bought a set of golf clubs for $1700. He has 6 months to pay off his balance after paying a down payment. The store does not charge a fee for their program. If Bill makes payments of $201 a month, how much did he need to use as a down payment in order to pay for the clubs

Answers

Answer:

$494

Step-by-step explanation:

Given that:

Cost of golf club = $1700

Number of months taken to balance payment after down payment = 6 months

Amount paid per month = $201

The down payment made :

Cost of golf clubs - (monthly payment * number of months)

$1700 - ($201 * 6)

$1700 - $1206

= $494

Hence, the downpayment made = $494

Help...........Me.........Please......

Answers

Answer:

ONE

Step-by-step explanation:

Answer:

8. y = -4

Step-by-step explanation:

2 ( -2y - 6 ) + 10 = -4y + 22 + 6y

-4y - 12 + 10 = -4y + 22 + 6y

-6y = 12 - 10 + 22

-6y = 24

y = -4

Please help i need to get this done asap !

Answers

Answer:

Step-by-step explanation:

Equation of line k is   y = (-4/7)x + 1

point (-5,-10); m = -4/7

Line L is perpendicular to k so the perpendicular slope will be 7/4

Equation of line L is  (y - y1) = m(x-x1)

y+10 = (7/4) (x +5)

4y + 40 = 7x + 35

4y = 7x - 5

y = (7/4)x - (5/4)

if a bag has 22 orange, 18 red, 12 green and 8 blue marbles what is the probability, that I draw blue marble, keep it, then draw another blue marble?

Answers

Answer:

14/885 or 1.58%

Step-by-step explanation:

In total, there are 60 marbles. The probability of drawing a blue marble the first time is 8/60. If you keep the one blue marble that was drawn, the total number of marbles in the bag is 59, and there are now 7 blue marbles. The probability of drawing a blue marble now is 7/59.

In order to find out the total probability of drawing two blue marbles in a row, you need to multiply these two fractions.

(8/60) x (7/59) = 56/3540 = 14/885 (approx. 1.58%)

Hope this helps!

Answer:

13.33333%

Step-by-step explanation:

Which angle or side combinations can make a triangle? Select all that apply. Angles measuring 90°, 45°, and 45°. Angles measuring 27°, 35°, and 108°. Angles measuring 82°, 41°, and 57°. Sides measuring 8 cm, 12 cm, and 5 cm. Sides measuring 7 in., 4 in., and 13 in. Sides measuring 43 cm, 41 cm, and 58 cm.

Answers

Answer:

Angles measuring 90°, 45°, and 45°: Can make triangle

Angles measuring 27°, 35°, and 108°: Can not make triangle

Angles measuring 82°, 41°, and 57°: Can make triangle

Sides measuring 8 cm, 12 cm, and 5 cm: Can make triangle

Sides measuring 7 in., 4 in., and 13 in: Can not make triangle

Sides measuring 43 cm, 41 cm, and 58 cm: Can make triangle

Step-by-step explanation:

For the angles to form a triangle, there sum must be equal to 180°

Angles measuring 90°, 45°, and 45°

Sum of Angles = 90° + 45° +45° = 180°

Hence, this combination can make triangle.

Angles measuring 27°, 35°, and 108°

Sum of Angles = 27° + 35° + 108° = 170° ≠ 180°

Hence, this combination can not make triangle.

Angles measuring 82°, 41°, and 57°

Sum of Angles = 82° + 41° +57° = 180°

Hence, this combination can make triangle.

For three sides to form a triangle the sum of the two sides must be greater than the length of third side.

Sides measuring 8 cm, 12 cm, and 5 cm

(8 cm + 12 cm) > 5 cm (True)

(8 cm + 5 cm) > 12 cm (True)

(12 cm + 5 cm) > 8 cm (True)

Hence, this combination can make triangle.

Sides measuring 7 in., 4 in., and 13 in

(7 in + 4 in) > 13 in (False)

Hence, this combination can not make triangle.

Sides measuring 43 cm, 41 cm, and 58 cm

(43 cm + 41 cm) > 58 cm (True)

(43 cm + 58 cm) > 41 cm (True)

(41 cm + 58 cm) > 43 cm (True)

Hence, this combination can make triangle.

Answer:

A- Angles measuring 90°, 45°, and 45°.

C- Angles measuring 82°, 41°, and 57°.

D- Sides measuring 8 cm, 12 cm, and 5 cm

F- Sides measuring 43 cm, 41 cm, and 58 cm.

Step-by-step explanation:

I got it wrong for you guys :D

There is the picture for proof, Have a Wonderful day to anyone who see's this

:)

PLEASE HELP!! I found out the monthly rent but i don’t know how to write this equation in slope intercept form!! (i added a photo attachment)

Answers

Your formula for slope intercept is y=mx+b

what is equivalent to 2/3 - (-3/4) + 5/4 ​

Answers

Answer:

Simplify the expression.

Exact Form:

8

3

Decimal Form:

2.

¯

6

Mixed Number Form:

2

2

3

Step-by-step explanation:

i need help!
number 14

Answers

Answer:

I’m gonna edit This answer give me a sec to do the work

Step-by-step explanation:

Answer:

1. One Solution

2. No Solution

3. Infinitely Many

Hope this helps :)

Increase 130 by one fifth​

Answers

Answer:

sorry i cant help

Step-by-step explanation:

Answer:

156.

Step-by-step explanation:

130/5 = 26.

130 + 26 = 156.

Pls help me it is a simple function

Answers

Answer:

blank 1 = 4

blank 2 = 1

Step-by-step explanation:

The slope is how much the y changes for each x value.

have a great day!!!

Can someone please help?!

Answers

                   .                                                                    

....................

. .                                                              

                                              .       .

A line has slope m=3/4 and passes through the point (0,-5) what is the equation of the line?​

Answers

The equation is y = 3/4x -5.

To the nearest tenth, what is the value of x?
A. 3.5
B. 4.8
C. 5.9
D. 7.3
E. 9.8 ​

Answers

Answer:

D, I think, pls don't report if im wrong

Step-by-step explanation:

Solve for x 2.3x-3.2+1.6x=.7x

Answers

Answer:

x=1

Step-by-step explanation:

Answer:

x = 1

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

2.3x −3.2 + 1.6x = 0.7x

2.3x + − 3.2 + 1.6x = 0.7x

(2.3x + 1.6x) + (−3.2 )= 0.7x (Combine Like Terms)

3.9x + −3.2 = 0.7x

3.9x − 3.2 = 0.7x

Step 2: Subtract 0.7x from both sides.

3.9x − 3.2 − 0.7x = 0.7x − 0.7x

3.2x − 3.2 = 0

Step 3: Add 3.2 to both sides.

3.2x − 3.2 + 3.2 = 0 + 3.2

3.2x = 3.2

Step 4: Divide both sides by 3.2.

x = 1

Hope this helps!!!!!

plzplPzlpzlzpzl .......i beg u do this easy question for me ....​

Answers

Answer:  [tex]-p^2-(q+r)^2[/tex]

Work Shown:

I'm assuming your teacher wants you to factor as much as possible.

[tex]-p^2-q^2-r^2-2qr\\\\-p^2-q^2-2qr-r^2\\\\-p^2-(q^2+2qr+r^2)\\\\-p^2-(q+r)^2\\\\[/tex]

In the last step, I used the rule that [tex](a+b)^2 = a^2+2ab+b^2[/tex]

We cannot factor any further. If the first term was [tex]p^2[/tex] instead of [tex]-p^2[/tex], then we could use the difference of squares factoring rule.

Papyrus or Undyne? YEET

Answers

Answer:

Papyrus. it is the only thing to pick! :) also YEET TO YOU TO

Answer:

:)

Step-by-step explanation:

Papyrus

lol

yeet to you too my good sir/madam

When a number is decreased by 4%, the result is 66. What is the original number to the nearest tenth?

Answers

Answer:

68.8

Step-by-step explanation:

100% = x number

96% = 66

so 100%

= 68.75

to the nearest tenth is 68.8

Other Questions
Which statements describe the effects of the 26th amendment check all that apply the burning of fossil fuels produces what kind of energy DOOOO NOTTT SKIPPPPPPP In the following code snippet, what are the local variables of the function modByTwo?function addFive(x){ var five = 5; var result = x + five; return result}function modByTwo(x){ var result = x % 2; return result;}result and xx onlyfive, result and xresult only - Isabel has a mother dog and her puppy that lookexactly alike. The puppy wcighs 6 pounds, and themother weighs 48 pounds. Assuming the two dogs aresimilar, what is the scale factor of the dilation? Several students measured a 25-mm-long nail and wrote the measurements shown in the table below. Whose measurement had the greatest percent error? Round to the nearest percent. (I need help ASAP!! Thanks!! -7 2/3 + -5 1/2+ 8 3/4 PLZZZZZ HELP ME!!!!!!!!!!!!!! i need help please reading What policy did King Cyrus II establish in the Persian Empire? Which of the following statements most directly expresses the authors thesis in the passage?[L]essons in the art of being feminine lay all around me (paragraph 1, sentence 1)[L]essons in the art of being feminine lay all around me (paragraph 1, sentence 1)AI loved being a little girl, or rather I loved being a fairy princess, for that was who I thought I was (paragraph 1, sentence 2)I loved being a little girl, or rather I loved being a fairy princess, for that was who I thought I was (paragraph 1, sentence 2)BFemininity was a challenge thrown down to the female sex, a challenge no proud, self-respecting young woman could afford to ignore (paragraph 2, sentence 2)Femininity was a challenge thrown down to the female sex, a challenge no proud, self-respecting young woman could afford to ignore (paragraph 2, sentence 2)C What are 2 examples of American imperialism and what was America's motivation in both examples? no copy righttt answer this question correctly and i'll give u brainliest pls Una cantidad de aire se lleva del estado a al estado b siguiendo una trayectoria recta en una grafica PV como es mostrado en la figura. Suponga que la expansin es desde un volumen de 0.06 metros cbicos a un volumen de 0.13 metros cbicos y que la presin aumenta desde 125,432 pascales a 168,793 pascales.Cunto trabajo efecta el gas en este proceso? Need this ASAP thanks Which of the following statements could you make about gorillas and chimpanzees based solely on the fact that they are both primates?Check all that are true.They live in tropical forests.They probably have prehensile hands and feet.They share characteristics with other primates.They evolved from tree-dwelling ancestors.They spend most of their time in trees When did Constantine legalize Christianity? n the middle of a game, Dawn has a score of -17. At the end of the game, Dawns score increases by 21. What is Dawns score at the end of the game? Show your work. How is the setting important in The Gentleman of Rio en Medio? __are to ribosomes as lipids are to__A) Sugars; peroxisomesB) Carbohydrates; rough endoplasmic reticulumC) Nucleoli; lysosomesD) Proteins; smooth endoplasmic reticulum Which end of the H-F molecule will be partially positive?neither endthe fluorine endboth endsthe hydrogen end