Solve the system by substitution -4-y=17 and 4y=x

Answers

Answer 1

Answer:

x = -84

y = -21

Step-by-step explanation:

4 - y = 17

4y = x

Use the first equation to solve for y

4 - y = 17

y = 4 -  17

y = -21

In the second equation, get y on its own.

4y = x

y = x/4

Substitute the new second equation into the new first equation

-21 = x/4

-21 * 4 = x

x = -84


Related Questions

22=-2x+4(-4x-17)

solve for x pls​

Answers

Answer:

x=-5

Step-by-step explanation:

22=-2x+4(-4x-17)

We move all terms to the left:

22-(-2x+4(-4x-17))=0

 We calculate terms in parentheses: -(-2x+4(-4x-17)), so:

-2x+4(-4x-17)

We multiply parentheses

-2x-16x-68

We add all the numbers together, and all the variables

-18x-68

Back to the equation:

-(-18x-68)

We get rid of parentheses

18x+68+22=0

We add all the numbers together, and all the variables

18x+90=0

We move all terms containing x to the left, all other terms to the right

18x=-90

x=-90/18

x=-5

Answer:

Step-by-step explanation:

22 = -2x + 4(-4x - 17)

22 = -2x + 4*(-4x) - 4*17

22 = -2x - 16x  - 68     {Combine like terms}

22 =  -18x - 68            {Add 68 to both sides}

22 + 68 = -18x

90 = -18x           {Divide both sides by (-18)

90/-18 = x

x = -5

the vertices of parallelogram abcd are A(4,0,3), B(3,4,-2),C(-2,0,1). find the coodrdinates of fourth vertices

Answers

Given :

The vertices of parallelogram ABCD are A(4,0,3), B(3,4,-2),C(-2,0,1).

To Find :

The coordinates of fourth vertices.

Solution :

We know, the vertices are ABCD .

Let, point D is (x,y,z) .

Also, diagonals of a parallelogram bisect each other.

Let, point of intersection of daigonal is O.

Coordinates of O are :

[tex]O_x = \dfrac{4+(-2)}{2}= 1\\\\O_y = \dfrac{0+0}{2 } = 0 \\\\O_z = \dfrac{3+1}{2}= 2[/tex]

O(1,0,2)

Value of point O through BD.

[tex]O_x = \dfrac{3+x}{2}\\\\x=-1\\\\O_y = \dfrac{4+y}{2}\\\\y = -4\\\\O_z= \dfrac{-2+z}{2}\\\\z = 6[/tex]

Therefore, the fourth vertices is D( -1,-4,6 ).

You bike 11.2 miles in 1.4 hours at a steady rate. What equation represents the proportional relationship between the you bike and the distance y in miles that you​ travel

Answers

Answer:

8x

Step-by-step explanation:

because its times x

what is the slope of 4x + 4y = 8?

Answers

Answer:

m=-1

Step-by-step explanation:

4x-8=-4y

x-2=-y

-x+2=y

Answer:

m=-1

Step-by-step explanation:

It is easiest to put the equation into slope-intercept form first.

4x+4y=8

4y=-4x+8

y=-x--2

The slope of the line is -1

gimme ur help plzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

A. (-2, -4)

Step-by-step explanation:

Substitution Method

3x + 2 = -2x - 8

5x = -10

x = -2

y = 3x + 2

y = 3 (-2) + 2

y = -4

(x, y) = (-2, -4)

A student solved z + (-0.72) = -2.5 for z using the
following steps.
Step 1: Z + (-0.72) + (-0.72) = -2.5+ (-0.72)
z = -2.5+ (-0.72)
Step 2:
Step 3:
z = -3.22
What was the student's error?

Answers

Answer:

Mistake in step1

Step-by-step explanation:

Given

z + (-0.72) = -2.5

Solving in steps

1. ⇒ z + (-0.72) - (-0.72) = -2.5 - (-0.72)2. ⇒ z = - (2.5 - 0.72)3. ⇒ z = - 1.78

The student's mistake was adding (-0.72) instead of - (-0.72) or 0.72

Answer:

To solve, you must use the inverse operation. In step 1, -0.72 should have been subtracted from both sides, not added. Otherwise, 0.72 should have been added to both sides, not -0.72.

Step-by-step explanation:

The graph below shows a system of equations:

The x-coordinate of the solution to the system of equations is

Answers

Answer:

solution is (-2, 2) so x-coordinate of solution is -2

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

First, we have to write down both equations.

y = x + 4

3y = -2x + 2

Now we already have an equation that we can plug into the other equation.

= 3(x + 4) = -2x + 2

= 3x + 12 = -2x + 2

= 5x + 12 = 2

= 5x = -10

x = -2

Now we know that x = -2, and the question asks for the x-coordinate, which is -2.

Convert 9 months into days

Answers

i hope this helps lol

Answer:

273.75

Step-by-step explanation:

what does x equal in the equation 3x=2y+19

Answers

Answer:

6.333

Step-by-step explanation:

3x=2y+19

3x=2(0)+19

3x/3=19/3

x=6.333

Determine any data values that are missing from the table, assuming that the data represent a linear function. (graph in picture)

Answers

Answer:

4

Step-by-step explanation:

x + 1 = y

3 + 1 = 4

answer needs to be 20 character long so this is filler

A line that passes through the point -4, -3 and 2,6

Answers

Answer:

The equation is;

2y = 3x + 6

Step-by-step explanation:

We start by calculating the slope of the line

m= y2-y1/x2-x1

m = (6+3)/(2+ 4) = 9/6 = 3/2

The point slope form would be;

y-y1 = m(x-x1)

Let us use the point (-4,-3)

Thus, we have

y + 3 = 3/2(x+ 4)

2y + 6 = 3x + 12

2y = 3x + 12-6

2y = 3x + 6

find
[tex] \frac{4}{11} of4 \frac{2}{5} [/tex]
[tex]please \: solve \: the \: question \: now[/tex]

Answers

Answer:

8/5

Step-by-step explanation:

Susan is going to have a party
There will be 50 people at the party

Susan wants to buy enough sausages so that each person at the part can have 2 sausages
There are 8 sausages in each pack
Susan buys 12 packs of sausages

Has she bought enough sausages?

Answers

No because there will be 100 sausages if there will be 50 people and everyone gets 2. 8x12 is 96, so Susan will need another pack.

In the first 8 overs the bowling rate of a cricketer is 4.5, In the last two over by giving how much run the bowling rate will be 5? ​

Answers

Answer:

In the last two overs, the bowler gave 14 runs.

Step-by-step explanation:

The bowling rate of 4.5 in the first 8 over means he gave 32.5 runs.

i.e.

Score given in first 8 overs = 4.5 × 8 = 36

Given that the bowling economy 5 at the end of 10 overs means the bowler must have given 10 × 5 = 50 score in the total 10 overs.

so, subtract 36 from 50 to get the score he will be giving in the last two overs.

i.e. score given the last two overs = 50 - 36 = 14

Therefore, in the last two overs, the bowler gave 14 runs.

what s the answer giving brainliest hehe

Answers

Answer: B.

Step-by-step explanation: B is the only option that provides the division symbol.

hiya, I kinda need help I'll be grateful if chu can help uwu
Which formula would you use when you are looking for the slope of a line and given two points on the line?
A.
point-slope formula
B.
slope formula
C.
slope formula and point-slope formula
D.
slope-intercept formula

Answers

Answer:c

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Use the slope formula to find the slope of a line given the coordinates of two points on the line. The slope formula is m=(y2-y1)/(x2-x1)

Can somebody help me with this question, please? I have no idea how to do this or find the answer. :/ How many ways are there to choose a number from the set {−96, −48, −42, −36, −18, −14, −6, 14} that is divisible by either 6 or 8?

Answers

Answer:

28 different ways

Step-by-step explanation:

This is a combination question. Combination has to do with selection.

Total number of element in the set = 8

Number divisible by 6 or 8 are {-98, -48, -42, -36, -18, -6}

Total number divisible by 6 or 8 is 6

The number of ways we can choose 6 items from 8 is expressed as;

8C6 = 8!/(8-6)!6!

8C6 = 8!/(2)!6!

8C6 = 8*7*6!/2!6!

8C6 = 8*7/2

8C6 = 56/2

8C6 = 28 ways

Hence there are 28 different ways

Divide the polynomials.
25 points!!!!! right answer get's brainliest

Answers

Answer:

x - 2

Step-by-step explanation:

[tex] \frac{ {x}^{2} - 12x + 20}{x - 10} \\ \\ = \frac{ {x}^{2} - 10x - 2x + 20 }{x - 10} \\ \\ = \frac{x(x - 10) - 2(x - 10)}{(x - 10)} \\ \\ = \frac{(x - 10)(x - 2)}{(x - 10)} \\ \\ = x - 2[/tex]

2×2=

Have a nice night.

Answers

Answer:

4

Step-by-step explanation:

Compute the following: StartFraction 7 factorial Over 3 factorial EndFraction a. 1680 b. 840 c. 21 d. 4

Answers

Answer:

B.  840

Step-by-step explanation:

Answer:) B

Step-by-step explanation:

Identify the range of the function shown in the graph.

Answers

Answer:

C. -5 ≤ y ≤ 5

General Formulas and Concepts:

Algebra I

Range is the set of y-values that are outputted by function f(x)

Step-by-step explanation:

According to the graph, our y-values span from -5 to 5. Since both are closed dot, they are inclusive in the range:

[-5, 5] or -5 ≤ y ≤ 5

Please help offering 15 points

Answers

The answer is C. Band is most popular among juniors

A) Original price is $25, markdown is 12%. The sales price is (only use numbers): $

Answers

Answer:

$22

Step-by-step explanation:

12% of 25 = 3

25 -3 = 22

Help Pls Fast! (55 POINTS!)

Answers

Answer:

Close to 6 miles. Exact is between 5.7 and 6

Step-by-step explanation:

Answer:

no  

Step-by-step explanation:

What are the steps for this equation: -5x-16 = -10x-11?

Answers

Answer:

x=1

Step-by-step explanation:

-5x-16=-10x-11

+10x +10x

5x-16=-11

+16 +16

5x=5

5x/5 = 5/5

x=1

Solve for x. 1/2x + 18 = 1/4x - 6

Answers

Answer:

x = -96

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define

1/2x + 18 = 1/4x - 6

Step 2: Solve for x

Subtract 1/4x on both sides:                    1/4x + 18 = -6Subtract 18 on both sides:                       1/4x = -24Divide 1/4 on both sides:                          x = -96

9.533, 9.527, 9.62, 9.58, 9.7

LESSER GREATER

HELP ASAP PLEASE

Answers

Answer:

9.527, 9.533, 9.58, 9.62, 9.7

Step-by-step explanation:

I hope this helps!!!!! HAVE A WONDERFUL DAY!!!

A circle with center (-1, 2) and radius of 8 has the equation:

PLEASE HELP AND EXPLAIN YOUR ANSWER

I'LL GIVE BRAINLIEST

Answers

I’m a bit rusty so take my answer with a grain of salt but I believe the equation for a circle in the coordinate plane is as follows
(x-h)^2 + (y-k)^2 = r^2 where (h,k) is the vertex
So applying the equation we get the fourth or final answer at the bottom or
(x+1)^2 + (y-2)^2 = 64

H(x)= ⎩ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎨ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎧ ​ x−5 1 ​ −(x−4) 2 3x−2 ​ , , , ​ x=0 x=7 x  ​ =0,7 ​ h(6)=h(6)=h, left parenthesis, 6, right parenthesis, equals

Answers

h (5) - piw 0x-34 :))))))))))

Answer:

h(6)=16

Step-by-step explanation:

khan

ANSWER ASAP!
Taylor earned the following amount each day.
• one dollar of the first day
• three dollars on the second day
• nine dollars on the third day
• twenty-seven dollars on the fourth day
Which function represents Taylor's daily earnings as a function of the number of days, t?
A f(x) = 3+1
B f(x) = 3
f(x) = 3t
D f(x) = 3-1

Answers

Answer:

f(t) = 3^(t - 1)

Step-by-step explanation:

one dollar of the first day  = 3^0three dollars on the second day = 3^1 nine dollars on the third day  = 3^2twenty-seven dollars on the fourth day = 3^3

Numbers increase 3 times a day, it is an exponential function, powers of 3

The function is going to be:

f(t) = 3^(t - 1)

Options are not clear, it seems to be D

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