Solve using substitution
x=2y-6
y= -3x+17

Answers

Answer 1

Answer:

(x, y) = (4, 5)

Step-by-step explanation:

given the 2 equations

x = 2y - 6 → (1)

y = - 3x + 17 → (2)

Either substitute x = 2y - 6 into (2) or y = - 3x + 17 into (1)

substituting y = - 3x + 17 into (1)

x = 2(- 3x + 17) - 6

x = - 6x + 34 - 6

x = - 6x + 28 ( add 6x to both sides )

7x = 28 ( divide both sides by 7 )

x = 4

substitute x = 4 into (2)

y = - 12 + 17 = 5

solution is (4, 5 )



Related Questions

Which of the following equations represents a degenerate ellipse?

Answers

Answer:  [tex]\frac{x^2}{10} = -\frac{y^2}{18}[/tex]

Step-by-step explanation:

Since, The degenerate form of an ellipse is always a point.

Thus, the equation that shows only a point will be our answer.

Since [tex]9x^2 + 4y^2 = 1[/tex] is the equation of an ellipse,

Thus, It can not be a point.

[tex]\frac{x^2}{14} + \frac{y^2}{19} =2[/tex] is not a point ( because it is an equation of ellipse)

But, when we plot [tex]\frac{x^2}{10} = -\frac{y^2}{18}[/tex]

We get only a point (0,0).

Thus, equation, [tex]\frac{x^2}{10} = -\frac{y^2}{18}[/tex] shows only one point.

Therefore, it is a generated form of ellipse.



Final answer:

The equation representing a degenerate ellipse would have the sum of the distances from the foci to any point on the curve as a constant.

Explanation:

An ellipse is a closed curve such that the sum of the distances from a point on the curve to the two foci is constant. So, the equation representing a degenerate ellipse would have the sum of the distances from the foci to any point on the curve as a constant. The correct equation is (b).

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PLEASE SHOW WORK
Solve using substitution
y=x+1
3x-y=9

Answers

y = x + 1   (*)

3x - y = 9   (**)

Substitute (*) to (**):

3x - (x + 1) = 9

3x - x - 1 = 9      add 1 to both sides

2x = 10     divide both sides by 2i

x = 5

Put the value of x to (*):

y = 5 + 1

y = 6Answer: x = 5 and y= 6 → (5, 6).

(3x+7x-20) ÷ (x+4) can someone solve this?

Answers

Answer:

Alright well solve by dividing using polynomial division

10 - 60/x + 4 Hope this helps have a nice day :)

Step-by-step explanation:


Bonnie is making a dipping sauce. She mixes 150 milliliters of soy sauce with 100 milliliters of vinegar. How much soy sauce does Bonnie mix with every 1 milliliter of vinegar?

Answers

Answer:How much soy sauce does Bonnie mix with every 1 millimeter of vinegar is 1.5

How much vinegar does bonnie mix with 1 millimeter of soy sauce is .666

Step-by-step explanation: The first is 150 divided by 100 is 1.5

solve the system of equations. use any method you'd like:
5x+6y=-14
x-2y=10

Answers

5x+6y=-14
x -2y= 10

5x+6y=-14
(x-2y=10)3

5x+6y=-14
3x-6y= 30
8x. = 16
8. 8
x= 2

then you substitute that x value for the x in either equation.

2-2y=10
-2. -2
-2y=8
-2. -2
y=-4

(2,-4)
Final answer:

To solve the system of equations, isolate x in the second equation and substitute it into the first equation. Simplify the resulting equation and solve for y. Substitute this value of y back into the second equation to find the value of x.

Explanation:

To solve the system of equations:

From the second equation, isolate x by adding 2y to both sides: x = 10 + 2y.Substitute this value of x into the first equation: 5(10 + 2y) + 6y = -14.Simplify the equation and solve for y:

50 + 10y + 6y = -14

16y = -64

y = -4

Substitute this value of y back into the second equation to find x:

x - 2(-4) = 10

x + 8 = 10

x = 2

Therefore, the solution to the system of equations is x = 2 and y = -4.

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Twenty-five subtracted from one-half a number is 10.What is the number?

Answers

Final answer:

The number in question is 70, found by solving the equation 1/2 * x - 25 = 10.

Explanation:

To find a number where half of that number, subtracted by 25, equals 10. We can set up an equation to represent this: 1/2 * x - 25 = 10, where 'x' is the number we are trying to find. To solve for 'x', we first add 25 to both sides of the equation, which gives us 1/2 * x = 35. Then, to isolate 'x', we multiply both sides by 2, resulting in x = 70. Therefore, the number is 70.

Final answer:

To find the number, isolate the variable by performing inverse operations. The number is 70.

Explanation:

To find the number, we need to translate the given information into an equation. Let's assume the number is x. The equation can be written as:

1/2x - 25 = 10.

To isolate the variable x, we first add 25 to both sides of the equation:

1/2x - 25 + 25 = 10 + 25.

This simplifies to 1/2x = 35.

Next, we multiply both sides of the equation by 2 to undo the division by

1/2: 2 × (1/2x) = 2 × 35.

The 1/2 cancels out on the left side, leaving us with x = 70.

Therefore, the number is 70.

Name the axis or quadrant in which the point (−3, 2) lies.
A. Quadrant III
B. Quadrant II
C. x-axis
D. Quadrant I

Answers

Because it has a negative x-value and positive y-value it shouls be in quadrant II

Complete the table to show how many yellow pencils there are if there are 5,7,9,11, or 13 blue pencils. How many of each type of pencil does shawna have if she has 55 pencils?

Answers

If there are 4 yellow pencils for each blue one, then this is the answer. If not then comment and tell me.

Blue   Yellow

5        20

7        28

9        36

11        44

13       52

The required number of yellow and blue pencils are 44 and 11 respectively.

What are equation models?

The equation model is defined as the model of the given situation in the form of an equation using variables and constants.

Here,
As Shawan has 4 yellow pencils for every blue pencil,
Let the number of blue pencils be b,
Now,
Yellow pencil (y) = 4 × b
Now,
put b = 5,7,9,11, or 13
So y = 20, 28, 36, 44, or 52

Now,
b + y  = 55
when b = 11 and y = 44 sums of the pencil would be 55.

Thus, the required number of yellow and blue pencils are 44 and 11 respectively.

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The measures of the angles of triangle ABC are given by the expressions in the table
What are the measures of angles A and C
m/A = ? Degrees
m/C = ? Degrees

Answers

Answer:

[tex]m<A=125\°[/tex]

[tex]m<B=35\°[/tex]

Step-by-step explanation:

step 1

Find the value of x

we know that

The sum of the interior angles in a triangle must be equal to 180 degrees

so

[tex]m<A+m<B+m<C=180\°[/tex]

substitute the values and solve for x

[tex](6x-1)\°+20\°+(x+14)\°=180\°[/tex]

[tex]7x=180\°-33\°[/tex]

[tex]7x=147\°[/tex]

[tex]x=147\°/7=21\°[/tex]

step 2

Find the measure of angle A

[tex]m<A=(6x-1)\°=6(21)-1=125\°[/tex]

step 3

Find the measure of angle C

[tex]m<C=(x+14)\°=21+14=35\°[/tex]

is -13/1 rational or irrational number

Answers

Answer:

Rational

Step-by-step explanation:

A rational number is a number that can be written  as a fraction, (or is any real number, positive or negative) Irrational numbers, for example, are numbers that are decimals, but dont terminate or repeat. Such as [tex]\pi[/tex] and [tex] the square root of 2, 3 and 5. may i have brainliest?


Write the fact family formed by these numbers 3 9 12

Answers

Answer:

The family formed by these numbers is 3x where x is any integer number.

Step-by-step explanation:

We have been given 3 9 12

We can see that given numbers are multiple of 3 so, we can say that the given numbers are from the family of 3x

Where x is any integer number when multiplied by 3 will give the multiple of 3.


Jim drove 605 miles in 11 hours. At the same rate, how many miles would he drive in 13 hours?

Answers

Answer: 715 Miles


Step-by-step explanation:

Divide 605 miles by 11 hours, which would give you how far he travels in 1 hour. (605/11=55)  Since they give you 13 hours, multiply 13 hours by 55 miles which gets you 715 miles :)

how do you solve this?

Answers

Answer: To solve these types of questions what I always do is get a protractor if you have one and put it up against to where the dot is in the middle of the empty hole and then get a ruler or a pencil and make the line keep going to see what angle. In this case your answer is 65% I think.

Can some please help and how to do it with the work shown.

Answers

10 + 6 + 6 = 22 cubes.

One grain of sand approximately weighs 7 * 10^{-5} g. How many grains of sand are there in 6300 kg of sand? Give your answer in standard form.

Answers

Answer:

Proportion states that the two ratio or fractions are equal.

Given the statement: One grain of sand approximately weighs 7 * 10^{-5} g.

To find how many grains of sand are there in 6300 kg of sand.

Let x be the number of grains of sand in 6300 kg of sand.

Using conversion :

1 kg = 1000 g

6300 kg = 6300000 g

Then, by using proportion method, we have;

[tex]\frac{1}{7\times 10^{-5}}= \frac{x}{6300000}[/tex]

[tex]\frac{10^5}{7} = \frac{x}{6300000}[/tex]

By cross multiply we get;

[tex]6300000 \times 10^5 = 7x[/tex]

or

[tex]63 \times 10^5 \times 10^5 = 7x[/tex]

[tex]63 \times 10^{5+5} = 7x[/tex]  [using [tex]x^a \cdot x^b = x^{a+b}[/tex]]

[tex]63 \times 10^{10} = 7x[/tex]

Divide both sides by 7 we get;

[tex]x = \frac{63 \times 10^{10}}{7} = 9 \times 10^{10}[/tex]

Standard form is a way of of writing down very large or very small numbers easily.

Therefore, [tex]9 \times 10^{10}[/tex] grains of sand are there in 6300 kg of sand.






Will award brainiest to whoever answers and helps, I really need this ;;

Mathematics of personal finance:

Assume that the probability of a driver getting into an accident is 7.1%, the average cost of an accident is $14,886.05, and the overhead cost for an insurance company per insured driver is $110. What should the driver's insurance premium be?

A)$1156.43
B)$1242.93
C)$1276.27
D)$1165.49

Answers

Multiply the probability by the cost of the accident:


14,886.05 x 0.071 = 1056.91

Now add the overhead cost:

1056.91 + 110 = 1166.91

The closest answer to this is number D.

Answer:

D. $1165.49

Step-by-step explanation:

We have that the probability of a driver getting into an accident = 7.1% i.e. 0.071.

Now, the average cost of an accident = $14,886.05

Then, the expected cost of an accident =  $14,886.05 × 0.071 = $1056.91

As, the overhead cost for insurance = $110

Therefore, the driver's insurance premium = $1056.91 + $110 = $1166.91

Since, the closest option to $1166.91 is option D.

Hence, the driver's insurance premium will be $1165.49.

Help with #27. Answer choices are
A. 2
B.5
C.3
D.4

Answers

Answer:

C

Step-by-step explanation:

Since GK bisects ∠FGH then ∠FGK = ∠KGH, hence

6v - 2 = 4v + 4 ( subtract 4v from both sides )

2v - 2 = 4 ( add 2 to both sides )

2v = 6 ( divide both sides by 2 )

v = 3 → C


What shape is a four-sided polygon with 4 right angles and at least 2 equal sides?

1. rectangle
2. diamond
3. square
4. triangle
wich one is correct?

Answers

1. Rectangle is the answer

Answer:

the answer is rectangle

Step-by-step explanation:


which equation in slope-intercept from represents the line that passes through (-1, 5) and (5, 8)
y= 1/2 x -11
y=-1/2 x +11/2
y= 1/2 x +11/2
y= -1/2 x -11/2

Answers

Answer:

y= 1/2 x +11/2

Step-by-step explanation:

To find the slope

m = (y2-y1)/(x2-x1)

  = (8-5)/(5--1)

  = 3/(5+1)

  = 3/6

  = 1/2


Using point slope form of a line

y-y1 = m(x-x1)

y-5 = 1/2(x--1)

y-5 = 1/2(x+1)

Distribute

y-5 = 1/2x +1/2

Add 5 to each side

y = 1/2x + 1/2 + 5

Change 5 to 10/2

y = 1/2x + 1/2 + 10/2

y = 1/2x + 11/2

Slope-intercept form:

y = mx + b

"m" is the slope, "b" is the y-intercept (the y value when x = 0) or (0,y)


To find the slope, you can use the slope formula and plug in the two points:

(-1,5) = (x₁ , y₁)

(5,8) = (x₂ , y₂)


[tex]m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

[tex]m=\frac{8-5}{5-(-1)}[/tex]

[tex]m=\frac{8-5}{5+1} =\frac{3}{6} =\frac{1}{2}[/tex]


y = 1/2x + b

To find "b", plug in either of the points into the equation:

(5,8)

y = 1/2x + b

8 = 1/2(5) + b

8 = 5/2 + b      Subtract 5/2 on both sides

8 - 5/2 = b         Make the denominators the same in order to subtract them

16/2 - 5/2 = b

11/2 = b


[tex]y = \frac{1}{2}x+\frac{11}{2}[/tex]    

The 3rd option is your answer

Find the first, fourth, and tenth terms of the arithmetic sequence described by the given rule. A(n) = 5 + (n-1)(1/6)

Answers

[tex]A(n)=5+(n-1)\left(\dfrac{1}{6}\right)=5+\dfrac{1}{6}n-\dfrac{1}{6}=\dfrac{1}{6}n+\dfrac{30}{6}-\dfrac{1}{6}\\\\A(n)=\dfrac{n+29}{3}\\\\\text{Put n = 1, n = 4 and n  = 10 to the formula:}\\\\A(1)=\dfrac{1+29}{3}=\dfrac{30}{3}=10\\\\A(4)=\dfrac{4+29}{3}=\dfrac{33}{3}=11\\\\A(10)=\dfrac{10+29}{3}=\dfrac{39}{3}=13[/tex]

HELP 10PTS!! what is the value of x?

Answers

Answer:

68

Step-by-step explanation:

Since this is an isosceles triangle the bottom 2 angles are equal.  So both bottom angles are 56 degrees.  The three angles of a triangle add to 180 degrees.

56+ 56+ x = 180

Combine like terms

112 +x =180

Subtract 112 from each side

112-112+x = 180-112

x =68



this is an Isoseles triangle. this means that the angle that isn't labeled will also be 56. Since all angles of a triangle add up to 180, you add all the angles together and get 180 = 56 + 56 + x.
add like terms: 180 = 112 + x. subtract 112 from both sides: 68 = x. and that's your answer.

For which value of X is the row in the table of values incorrect? The function is the quadratic function Y=3/4x^2

Answers

Answer:

x = 2

Step-by-step explanation:

check by substituting each given value of x into the function

x = 0 ⇒ y = [tex]\frac{3}{4}[/tex] × 0² = 0

hence (0, 0) is correct

x = 2 ⇒ y = [tex]\frac{3}{4}[/tex] × 4 = 3

hence (2, 4 ) is incorrect

x = 3 ⇒ y = [tex]\frac{3}{4}[/tex] × 9 = 6 [tex]\frac{3}{4}[/tex]

hence (3, 6 [tex]\frac{3}{4}[/tex]) is correct

x = 5 ⇒ y = [tex]\frac{3}{4}[/tex] × 25 = 18 [tex]\frac{3}{4}[/tex]

hence (5, 18 [tex]\frac{3}{4}[/tex]) is correct


what is the area of the piece of red paper after the hole for the photograph has been cut

Answers

47 square units is the answer on edge

Answer:

47 squared units.

Step-by-step explanation:

Which two values of x are roots of the polynomial below?

Answers

Answers: choice A, choice C

Compute the discriminant (use a = 1, b = 5, c = 11)

D = b^2 - 4ac

D = 5^2 - 4*1*11

D = 25 - 44

D = -19

The discriminant is negative, so the two solutions are complex or imaginary. The -19 will be under the root as choice A and choice C show

ANSWER THIS PLEEEEEEEEEEEEEEEEEEAAAAAAAAAASSSSSSSSSSSSEEEEEEEEEEE. I BEEEEEEEEEEEEEEEEEEEEGGGGGGGGGG OF YOOOOOOOOOOOOOOUUUUUUUUUWhat is the slope-intercept form of the function that contains the points (6, 2) and (4, 8)?

Answers

Answer:

y = -3x+20

Step-by-step explanation:

First we will write the equation in point-slope form,

[tex]y-y_1=m(x-x_1)[/tex], where m is the slope and [tex](x_1, y_1)[/tex] is a point on the line.

We must find the slope.  The formula for slope is

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Using our two points, we have

m = (8-2)/(4-6) = 6/-2 = -3

We will use the first point and this slope:

y-2 = -3(x-6)

Using the distributive property, we have

y-2 = -3(x)-3(-6)

y - 2 = -3x--18

y - 2 = -3x+18

Add 2 to each side:

y-2+2 = -3x+18+2

y = -3x+20

write an equation of the line containing the specified point and perpendicular to indicated line. (-5,6) 4x-y=3

Answers

Greetings!

Answer:

y = [tex]\frac{1}{2}x + \frac{29}{4}[/tex]

Step-by-step explanation:

First, we need to rearrange the equation to make it y = mx + c

4x - y = 3

y + 3 = 4x

y = 4x -3

So the slope of the line is 4.

The slope of a line perpendicular to an equation is:

[tex]\frac{-1}{gradient}[/tex]

So the slope of the perpendicular line is:

[tex]\frac{-1}{4}[/tex] = -0.25

Now to find the equation of a line you can use the following equation:

y - y₁ = m(x - x₁)

Where y₁ is the y-coordinate, x₁ is the x-coordinate and m is the gradient. Plug the values in:

y₁ = 6

x₁ = -5

m = [tex]\frac{-1}{4}[/tex]

y - 6 = [tex]\frac{-1}{4}[/tex](x - - 5)

To get rid of the fraction we need to multiply the whole equation by 4:

4y - 24 = -1(x - - 5)

The two negatives cancel out:

4y - 24 = -1(x + 5)

Multiply the brackets out:

4y - 24 = -x + 5

Now, to rearrange the formula back into y = mx + c

Move the -24 over to the other side making it a +24:

4y = 2x + 5 + 24

4y = 2x + 29

Divide everything by 4:

y = [tex]\frac{2}{4}x + \frac{29}{4}[/tex]

y = [tex]\frac{1}{2}x + \frac{29}{4}[/tex]


Hope this helps!



Mantago wants to borrow $20,000 to buy a used car. He examined his budget and decides that he can afford a payment of $425 a month. If his bank offers him an APR of 7.5%, how long should he borrow the money so he can afford his monthly payment?

3.5 years
4.66 years
4.5 years
4 years

Answers

I think it’s 4.66 years

Answer:

4.66 years

Step-by-step explanation:

Let us assume that it will take 't' years for him to repay the money that he would borrow.

We can use monthly cashflow formula:

[tex]C=Pr\frac{(1+r)^{12t}}{(1+r)^{12t}-1}[/tex]

Here, we have been given:

Monthly cashflow C=425

Loan amount P=20000

Interest rate AMR = 7.5%. Therefore, we have [tex]r=\frac{0.075}{12}[/tex]

Upon substituting these values in the formula, we get:

[tex]425=20000\cdot \frac{0.075}{12} \frac{(1+\frac{0.075}{12})^{12t}}{(1+\frac{0.075}{12})^{12t}-1}[/tex]

Upon simplifying, we get:

[tex]425=125 \frac{(1+0.00625)^{12t}}{(1+0.00625)^{12t}-1}[/tex]

[tex]425=125 \frac{(1.00625)^{12t}}{(1.00625)^{12t}-1}[/tex]

Upon solving this equation using a calculator, we get:

[tex]t=4.66[/tex]

Therefore, correct answer is 4.66 years. That is, second choice from the given options.

Drag each expression to show whether it is equivalent to 36 + 9, 9(4 – 1), or (4 • 9) + (4 • 2).

Answers

Answer:

None of these are equivalent

Step-by-step explanation:

36 + 9 = 45

9(4 – 1) = 9* 3 = 27

 (4 • 9) + (4 • 2) = 36+ 8 = 44

If triangle ABC is similar WXY write a proportionality statement for the ratio of the sides of the triangle

Answers

There are many ways to answer this. Here is one answer shown below

AB/WX = BC/XY

On the left side is the ratio of AB over WX. These two sides are the bottom horizontal portions of the triangles. This is a visual indication that they correspond to one another. More concrete proof of this is that AB and WX are the first two letters of the sequences ABC and WXY respectively. The order is very important to help establish pairs like this.

On the right side of that equation above, we have BC and XY as the diagonal sides on the right part of each triangle. They are the last two letters of ABC and WXY respectively, which is a non-visual way to prove these two sides correspond.

It might help to line up ABC over top WXY so you can pick out the corresponding sides. I show this in the attached image below.

Answer: There are many ways to answer this.

Step-by-step explanation:

On the left side is the ratio of AB over WX. These two sides are the bottom horizontal portions of the triangles. This is a visual indication that they correspond to one another. More concrete proof of this is that AB and WX are the first two letters of the sequences ABC and WXY respectively. The order is very important to help establish pairs like this.

On the right side of that equation above, we have BC and XY as the diagonal sides on the right part of each triangle. They are the last two letters of ABC and WXY respectively, which is a non-visual way to prove these two sides correspond.

100 POINTS!!!!!!!!!!!



The bottom one is < 1 and < 3

Answers

Answer:

B. <1 and <5

Step-by-step explanation:

they look exactly the same

Answer:

Correct answer is B. <1 and <5

Step-by-step explanation:


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