Solve the following system of equations using substitution.
y = 2x-2
-4x-y = 26

Answers

Answer 1

Answer:

x = -4

y= -10

Step-by-step explanation:

Solving for x

-4x-y = 26

-4x-(2x-2) = 26

-6x+2 = 26

-6x = 24

x = -4

Solving for y

y = 2x-2

y = 2(-4) -2

y= -8-2

y = -10


Related Questions

An isosceles triangle has two sides of equal length, a, and a base, b. The perimeter of the triangle is 15.7 inches, so the equation to solve is 2a + b = 15.7.
Which lengths make sense for possible values of b? Check all that apply.
–2 in.
0 in.
0.5 in.
2 in.
7.9 in.

Answers

Answer:

0.5 in, 2 in

Step-by-step explanation:

It cannot be a negative number, so -2 is out.If we use Pythagorean's theorem ([tex]a^2+b^2=c^2[/tex]), we know that only 0.5 and 2 are correct values of b.

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
A basketball uniform costs $!6 for the shirt and $13 for the shorts. If the coach needs to buy uniforms for 9 players, use the distributive property

(show work)

Answers

Answer:

$171

Step-by-step explanation:

(6+13)x9=

19x9=

171

Answer:

The answer is X=171

Step-by-step explanation:

9(6+13)=X

you use the distributive property

9x6+9x13=X

then you do

9x6 which is 54

54+9x13=X

then you do 9x13 which is 117

54+117=X

then you add it which equals 171

X=171

Which point is located at (4, 1)?
A
B
C
D

Answers

Answer:

A is located at (4,1)

Step-by-step explanation:

The first number will always be on the x-axis and the second will always be on the y-axis. For example: (x,y) so A is (4,1) , B is (-4,1), C is (1,4) and D is (-1,4).

Hope this helps! ;)

Final Answer: Point A

Steps/Reasons/Explanation:

Question: Which point is located at [tex](4, 1)[/tex]?

The x-axis would be 4 and the y-axis would be 1. The x-axis is horizontal and the y-axis is vertical.

For the x-axis, it tells you the markings of the numbers, so moving to the right would be positive and left would be negative.

For [tex](4, 1)[/tex] we would go four to the right and one up. Point A is located there.

~I hope I helped you :)~

K is the midpoint of VW.
If KV = 3x and KW = 5x-10, what is VW?
22.5
15
7.5
30

Answers

Answer:

15

Step-by-step explanation:

just took the test. x=5 and the answer to the equation is 15

What is the equation of the line through the origin and (-4,-9)?
OA. y= 9x
O B. y=
OC. y= 4x
OD.y

Answers

Answer:D

Step-by-step explanation:

Haley brought 4 boxes of candy canes at the santa store if each box of candy canes cost $2.65 and she paid with a twenty dollar bill how much change should get back

Answers

Answer: $9.04

Step-by-step explanation:

one box is $2.65 and $2.65x4=$10.09 and if there is a $20.00 then $20.00-$10.09=$9.04. :P

What is sink?
HELP ASAP 20 POINTS

Answers

Sin of K is opp/hyp so the answe is a.12/13

I have to draw the graph this time so if someone can show me the graph what it would look like on a piece of paper or draw it for me I will give you triple the points but if you don’t know it don’t type I’ll I’ll have to report you!!!

Answers

Answer:

Hope this helps! :D

When a racer glides off a cliff, they can travel 75.2 feet. How far would the racer travel if they go over 3 cliffs?

Answers

Answer:

225.6 feet

Step-by-step explanation:

It should be pretty simple, you need to multiply 75.2 times 3. In result your answer is 225.6 feet or rather more simply (225 feet 7 13/64 inches.)

225.6 feet, just multiply the two numbers.

PLEASE HELP ME I DONT UNDERSTAND

Answers

This should be the answer

Answer:

i got 8.944272

Step-by-step explanation:

might be wrong because i havent done a probelm like this in a long time

but i used the distance formula between the 2 plotted points.

In the following table, y is a function of x. True or false: The table below represents a function.

Answers

False
Bc when you divide y/x it equal different unit rates

Jeff can walk 3 laps in 8 minutes. At this pace, how many full laps can he walk in 20 minutes?

Answers

Answer:

7 full laps

Step-by-step explanation:

let x= how many laps

[tex]\frac{3}{8} =\frac{x}{20}[/tex]

cross multiply

60=8x

60/8=x

7.5=x

7 full laps (because 0.5 is half a lap)

Answer:

7 full laps

let x= how many laps

cross multiply

60=8x

60/8=x

7.5=x

7 full laps (because 0.5 is half a lap)

Step-by-step explanation:

helpppppp!! Please ?

Answers

Answer:

I whold say that is 7 or 6. hope this helps please mark me branlenest.

AD: 6 cm
AC: 6 cm
Because we know that BD and AC are perpendicular, we know that the two triangles are right triangles. Now, just use the Pythagorean Theorem to find the missing side.

Blake must choose between two job offer. Evergreen Landscape will pay him $9.75 hours to mow lawns, but its is a long way from his house. He would probably spend $25 per week on gas. Just Jean will pay Blake $6.50 per hour to work as a retail clerk. Since the store is very close to his house, he would probably only spend $5 per week on gas. let x be the number of hours that Blake will work in a week and y be the amount of money he will have end of the week if he does not spend any money expect on gas.
a. Explain how the following two rules reflect the two jobs offer that Blake has.
B. Solve the system of equations in part A. (9.75x - 25 = 6.50x -5) indicates what its tell you about blake job offers and the amount of money he will have at the end of the week.
C. blake plan to work at least 15 hours per week. Which job should he take.

Answers

Answer:

A. The explanation of the rules are;

For the job offer for the Evergreen Landscape, Blake will have 9.75 times by the number of hours worked less the $25 for gas at the end of the week

For the job offer for the Just Jean, Blake will have 6.50 multiplied by the number of hours worked less the $5 for gas at the end of the week

B. The solution to the equations is that the number of hours Blake will work to have the same amount in both Jobs is 6.1538 hours

C. Blake should take the Job at Evergreen Landscape

Step-by-step explanation:

The amount Evergreen Landscape will pay Blake to mow lawn = $9.75

The amount Blake would spend to work per week on gas for work at Evergreen Landscape = $25

The amount Just Jean will pay Blake to work per week as a retail clerk = $6.50

The amount Blake would spend to work per week on gas for work at Just Jean = $5

Whereby, x = The number of hours that Blake will work in a week

y = The amount of money he will have end of the week, if he does not spend any money except gas

A. The given rules are;

y = 9.75·x - 25

y = 6.50·x - 5

For the job offer for the Evergreen Landscape, we have;

y = 9.75·x - 25

Blake has to put aside $25 out of his weekly earnings for gas

Blake will have 9.75 multiplied by the number of hours worked less the $25 for gas

For the job offer for the Just Jean, we have;

y = 6.50·x - 5

Blake will have 6.50 multiplied by the number of hours worked less the $5 for gas

B. The common solution of the both equations is given by equating both values of y as follows;

9.75·x - 25 = 6.50·x - 5

9.75·x - 6.50·x = 25 - 5

3.25·x = 20

x = 20/3.25 = 6.15385

x = 6.15385

The number of hours Blake will work to have the same amount in both Jobs = 6.1538 hours

C. Given that the number of hours Blake can work each week = 15 hours, we have;

For the job offer for the Evergreen Landscape, we have;

y = 9.75 × 15 - 25 = 121.25

The amount of money he will have end of the week = y = $121.5

y = 6.50 × 15 - 5 = 92.5

The amount of money he will have end of the week = y = $92.5

Therefore, given that by working 15 hours a week, Blake earns $121.5 on the Evergreen Landscape job and $92.5 on the Just Jean job, Blake should take the Job at Evergreen Landscape.

Identify an equation in point-slope form for the line parallel to y+-2/3x+8 that passes through (4, -5).

Answers

Step-by-step explanation:

Line parallel to the line y = -2/3 x + 8 also has the slope -2/3.

Since the line passes through (4, -5), we have (x - 4) written on the right side and (y + 5) on the left side.

Hence the equation is y + 5 = -2/3 * (x - 4). (B)

A driver travels 208 miles in 4 hours. what is the driver's speen,in miles per hour ?

___miles per hour

Answers

Answer:

52

Step-by-step explanation:

miles per hour so 208, which is miles and 4 which is hours so 208/4 which is 52

Answer:

Hi there,

52 miles/hr

Step-by-step explanation:

we just divide 208 by 4

Alex made 3/5 of a batch of cookies in 3/10 of an hour. How much time will it take him to make 1 full batch of cookies?

Answers

Answer:

[tex]\frac{1}{2}[/tex]h

Step-by-step explanation:

Let the total batch of cookies be x.

[tex]\frac{3}{5}[/tex]x = [tex]\frac{3}{10}[/tex]h

[tex]\frac{5}{5}[/tex]x = [tex]\frac{5}{3}[/tex] × [tex]\frac{3}{10}[/tex]h

x = [tex]\frac{15}{30}[/tex]h

x = [tex]\frac{1}{2}[/tex]h

Help! (;´༎ຶٹ༎ຶ`)
Considere el patrón de cuadrados que se muestra a continuación:

Qué tipo de modelo, lineal o exponencial deberi sarse para determinar cuántos cuadrados hav
en el patrón n-ésimo (enesimo ? Explique respuesta

Consider the pattern of squares shown below:

What type of model, linear or exponential, should be used to determine how many squares are in the n esimo pattern? Explain your answer.

Answers

Answer:

que tembe frendeas tete.... thes i was 608 i deas fedas decde

step-by-step explanation:

jk i dont speak spanish

what isvequivalent to y=23x−6?

Answers

Answer:

Slope = 46.000/2.000 = 23.000

x-intercept = 6/23 = 0.26087

y-intercept = -6/1 = -6.00000

Find the slope of the line passing through the points
(-3. 7) and (2. -6).

Answers

Answer:

( 3 , 7 )

Step-by-step explanation:

maybe this will help you

Help due in 10 minutes!!

Answers

Answer:

A its like right there in the chart

Step-by-step explanation:

hope this helped

D. The graph goes up by 2.5 each time.

A carpenter cut a 6 ½-ft. board into 3/4-ft. sections. What is the number of whole sections he cut?

Answers

Answer:

8

Step-by-step explanation:

This man is cutting 6.5 ft of wood into pieces that are .75 ft long.

Divide 6.5/.75 and there's ur answer chief

On a coordinate plane, a straight red line with a positive slope, labeled g of x, crosses the x-axis at (negative 3, 0) and the y-axis at (0, 3). A straight blue line with a positive slope, labeled f of x, crosses the y-axis at (0, negative 3) and the x-axis at (1, 0). Both lines intersect at (3, 6).

Answers

Answer:

f(6) = g(3)

Step-by-step explanation:

Which statement is true regarding the functions on the graph?

f(6) = g(3)

f(3) = g(3)

f(3) = g(6)

f(6) = g(6)

Solution:

g(x) passes through the points (-3, 0) and the y-axis at (0, 3). The equation of g(x) is given as:

g(x) = y

[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)[/tex]

[tex]y-0=\frac{3-0}{0-(-3)}(x-(-3))\\\\y=x+3\\\\g(x)=y= x+3\\\\g(x)=x+3[/tex]

f(x) passes through the points (0, -3) and the y-axis at (1, 0). The equation of f(x) is given as:

f(x) = y

[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)[/tex]

[tex]y-(-3)=\frac{0-(-3)}{1-0}(x-0))\\\\y+3=x\\\\f(x)=y= x-3\\\\f(x)=x-3[/tex]

f(6) = x-3 = 6 - 3 = 3

g(3) = x + 3 = 3 + 3 = 3

f(6) = g(3)

help me please im dumb

Answers

Answer:

I believe the answer is true.

Step-by-step explanation:

Parentheses are the first operation in PEMDAS but when there is brackets I was always told to do what was inside them first. Hope this helps <3

Answer:

its true.

because BEDMAS.

^

|

B( bracket )

What are the factors of 10x^3+24x^2+14x

Answers

Answer:

2x(x+1)(5x+7)

Step-by-step explanation:

10x^3+24^2+14

2(5x^3+12x+7)

2x(5x^2+12x+7)

2x(x+1)(5x+7)

2x(2x+1)(5x+7)

What are sets and how can they be represented ?

Answers

A set is usually denoted by a capital letter, such as A, B, or C. A set may be described by listing all of its elements enclosed in braces.

For example, if Set A consists of the numbers 2, 4, 6, and 8, we may say: A = {2, 4, 6, 8}.

A student earns $11.75 per hour for gardening. if she worked 21 hours this month, then how much did she earn? show work​

Answers

Answer:

$246.75

Step-by-step explanation:

A student earns $11.75 for 1 hour

If she works for 21 hours this month then the total amount earned can be calculated as follows

= 11.75 × 21

= 246.75

Hence the total amount earned this month is $246.75

i need to know the solution of 4(x+3)-4=81/2x+1

Answers

What does x stand for?

Answer:

[tex]x= \frac{-7+\sqrt{697}}{8}[/tex]

[tex]x= -\frac{7+\sqrt{697}}{8}[/tex]

Step-by-step explanation:

4(x+3)-4 = 81/2x +1

Add 4 to both sides

4(x+3) = 81/2x +5

Multiply both sides by 2x (This removes the division from the second half)

8x(x+3) = 81 +10x

Simplify

[tex]8x^{2}[/tex]+24x = 81 +10x

Subtract 10x from both sides

[tex]8x^{2}[/tex] +14x = 81

Subract 81 from both sides

[tex]8x^{2}[/tex] +14x -81 = 0

Solve using the quadratic formula

[tex]x= \frac{-b (+-) \sqrt{b^{2} -4ac}}{2a}[/tex]

a= 8, b= 14, c= -81

[tex]x = \frac{-14 (+-) \sqrt{14^{2} -4 *8(-81)} }{2*8}[/tex]  

Simplify

[tex]\sqrt{14^{2} -4 *8(-81)} = 2\sqrt{967}[/tex]

[tex]\frac{-14 (+-) 2\sqrt{967}}{2*8}[/tex]

Simplified Solution

[tex]x= \frac{-7+\sqrt{697}}{8}[/tex]

And

[tex]x=- \frac{7+\sqrt{697}}{8}[/tex]

I know this is confusing but I hope it helps. Keep in mind that (+-) means plus or minus. You might also look up what the quadratic formula is if you are not already familiar with it.  

Is the following relation a function?

Relation:
Х Y
6 8
5 1
6 6
2 4

The domain:
{2,5,6}

The range:
{1,4,6,8}

Answers

Answer: No

Step-by-step explanation:

The domain consists of the numbers 6, 5, 6, 2

6 is repeated twice

The criteria for a function is that there are no repeating numbers in the domain

This does not follow the criteria, therefore this is not a function

Answer-No

You have budgeted $850 per month for rent. Your landlord has just informed you that your rent is being raised by 5% now and another 5% on December 1st. What will your rent be at the end of this year?

Answers

Your rent will be $894.63 if u raise it that much

Answer:

$892.50

Step-by-step explanation:

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