Find the solution to the following system of equations.
y= -2x + 4
2x – 3y = 18

Find The Solution To The Following System Of Equations.y= -2x + 42x 3y = 18

Answers

Answer 1
x would be equal to 15/4 and y equals −7/2
Answer 2

Answer:

(3.75, -3.5)

Step-by-step explanation:

y= -2x + 4  -->     2x +  y=  4

                       

2x – 3y = 18 --> 2x – 3y = 18

use elimination

3(2x+y=4) -->   6x+3y=12

                      2x-3y=18

                       8x    = 30

divide by 8

x=3.75

2(3.75)+y=4

7.5+y=4

subtract 7.5 from both sides

y= -3.5

(3.75, -3.5)


Related Questions

Find the radius and diameter of each of the circles .

Find the radius and diameter of each of the circles .

Answers

Answer:

Step-by-step explanation:

Diameter of the Circle refer to a line passing through the centre and meets the circumference at opposite ends. And it twice as long as Radius.

1)   Radius is given  3yd

so, diameter is  double of radius  2*3=6yd

Radius= 3yd

Diameter=6yd

2)   Diameter is given  92 in

so, radius is half of diameter  92/2=  46 inch

Radius= 46 in

Diameter= 92 in

3)    Radius is given 23 ft

so, diameter is double of radius 23*2 = 46 ft

Radius = 23 ft

Diameter = 46 ft

4)   Diameter is given 36 in

so, radius is half of diameter 36/2 = 18 in

Radius = 18 in

Diameter = 36 in

5) Radius is given 19 ft

so, diameter is double of radius 19*2 = 38 ft

Radius = 19 ft

Diameter = 38 ft

6) Diameter is given 12yd

so, radius is half of diameter  12/2 = 6yd

Radius = 6yd

Diameter = 12yd

Please help with this question

Please help with this question

Answers

Answer:

It's Angle ABC because an inscribed angle is the angle formed in the interior of a circle when two chords intersect on the circle

Need answers please help

Need answers please help

Answers

Answer

Yes, zero is contained in the interval

Parallelogram JKLM is shown on the coordinate plane below:

Parallelogram JKLM with ordered pairs at J negative 6, 2, at K negative 4, 6, at L negative 3, 3, at M negative 5, negative 1.

If parallelogram JKLM is rotated 270° clockwise around the origin, what are the coordinates of the endpoints of the side congruent to side JM in the image parallelogram?

J′(−2, −6); M′(1, −5)
J′(6, 2); M′(−5, 1)
J′(2, 6); M′(−1, 5)
J′(6, −2); M′(5, 1)

Answers

Answer: Parallelogram JKLM is shown on the coordinate plane below:

Parallelogram JKLM with ordered pairs at J negative 6, 2, at K negative 4, 6, at L negative 3, 3, at M negative 5, negative 1.

If parallelogram JKLM is rotated 270° clockwise around the origin, what are the coordinates of the endpoints of the side congruent to side JM in the image parallelogram?

J′(−2, −6); M′(1, −5)

J′(6, 2); M′(−5, 1)

J′(2, 6); M′(−1, 5)

J′(6, −2); M′(5, 1)

Step-by-step explanation:

Brand A coffee sells for $7/pound, while Brand B sells for $5.40/pound. How much of each brand of coffee is needed to make 5 pounds that will cost
$6.75/pound?

A. 0.8 pounds Brand A, 4.2 pounds Brand B
B. 2.7 pounds Brand A. 2.3 pounds Brand B
C. 4.2 pounds Brand A. 0.8 pounds Brand B
D. 2.3 pounds Brand A. 2.7 pounds Brand B

Answers

Answer:

C. 4.2 pounds Brand A. 0.8 pounds Brand B

Step-by-step explanation:

How much of each brand of coffee is needed to make 5 pounds that will cost

$6.75/pound?

Let the number of pounds for Brand A = x

Let the number of pounds for Brand B = y

Brand A coffee sells for $7/pound, while Brand B sells for $5.40/pound.

$7 × x + $5.40 × y = $6.75 × 5

7x + 5.40y = 33.75.......Equation 1

x + y = 5 .......Equation 2

x = 5 - y

7(5 - y)+ 5.40y = 33.75

35 - 7y + 5.40y = 33.75

35 - 33.75 = 7y - 5.40y

= 1.25 = 1.6y

y = 1.25/1.6

y = 0.78125 pounds.

Approximately to the nearest whole number, Brand B = 0.8 pounds.

x = 5 - y

x = 5 - 0.8 pounds

x = 4.2 pounds

Brand A = 4.2 pounds

PLEASE HELP! 8TH GRADE MATH

Use an equation to solve for the missing number. PLEASE SHOW WHAT U DID

Twice the sum of a number and seven is three times the number.

Answers

Answer:

Step-by-step explanation:

Okay, so you need to create an equation which shows that twice the sum of a number (n) and 7 is 3 times that number. So you need twice the sum of n + 7 and that will equal 3 times n.

2(n + 7) = 3n

Now, multiply

2n + 14 = 3n

2n + 14 -2n = 3n - 2n

14 = n

So the number is 14. Now you can check your answer

2(14 + 7) = 3(14)

2x21 = 42

42 = 42

Find the value of x .. assume that segments that appear to be tangent are tangent .

Find the value of x .. assume that segments that appear to be tangent are tangent .

Answers

We got x = 16.54 by using Pythagorean theorem .

What is the Pythagorean theorem in plain English?

According to Pythagoras's Theorem, the square of the hypotenuse side in a right-angled triangle is equal to the sum of the squares of the other two sides. Perpendicular, Base, and Hypotenuse are the names of this triangle's three sides.

angle of semicircle is always be 90° .

   18² = 7.1² + x²

    324 = 50.41 + x²

     x² = 324 - 50.41

          = 273.59

    x = √ 273.59

    x = 16.54

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You work in a hardware store. You have two boxes of nails. The first box weighs 6 pounds, 7 ounces, and the second
box weighs 2 pounds, 9 ounces. Which equation can be used to calculate how much the two boxes weigh in
ounces?
O ounces = 16(6 + 2) + 16
O ounces = 16(6 + 2)
O ounces = 16(6 x 2) + 16
O ounces = 16(6 x 2)
O ounces = 16(6+2)
Done

You work in a hardware store. You have two boxes of nails. The first box weighs 6 pounds, 7 ounces, and

Answers

Answer:

ounces = 16(6+2) + 16

Step-by-step explanation:

First you would have to find the conversion rate of pounds to ounces which is 16 ounces for 1 pound. That means that you would have to multiply 16 by the amount of pounds you have. Then you would have to add the amount of ounces you have onto the equation so A would be the one that does that.

URGENT LIKE I NEED IT RIGHT NOW

URGENT LIKE I NEED IT RIGHT NOW

Answers

Non existent that is your answer thank you

the 27 students in the orchestra stood in rows for their school picture. there were 9 students in every row. how many rows of students were there?

Answers

Answer:

3 Rows

Explanation:

Total number of students in the orchestra = 27

Number of Students per row =9

Therefore, the number of rows of students present

= 27/9

= 3 Rows.

Use the distributive property to remove the parentheses. -3(4v-2y-6)

Answers

-12v+6y+18

you multiply everything by -3, so -3×4v=-12v
-3×(-2y)=6y, since negative × negative=positive
-3×(-6)=18

i hope this helps :)

5
364,860
0/1 point
Camila has finally found a house she adores! The cost of the home is $210,000, which she intends to purchase on a 30-year fixed mortgage. Blinded by her adoration for the
property, she has agreed to a 5.5% interest rate. Round all answers to the nearest cent.
How much will Camila pay in interest over the lifetime of the mortgage?

Answers

The total interest on the mortgage loan  is $219,249.60

What is a mortgage loan?

It is a loan taken in order to purchase a property that requires periodic repayments such as monthly repayment since most mortgages are repaid monthly.

Our first task is to determine the monthly repayment using the present value formula of an ordinary annuity because the monthly payment becomes due at the end of each month.

PV=monthly repayment*(1-(1+r)^-N/r

PV=loan amount=$210,000

monthly repayment=unknown(assume it is X)

r=monthly interest rate=5.5%/12=0.00458333333333333

N=number of monthly payments in 30 years=30*12=360

$210,000=X*(1-(1+0.00458333333333333)^-360/0.00458333333333333

$210,000=X*(1-(1.00458333333333333)^-360/0.00458333333333333

$210,000=X*(1-0.19277525234572900)/0.00458333333333333

$210,000=X*0.80722474765427100/0.00458333333333333

$210,000=X*176.12176312456800000

X=$210,000/176.12176312456800000

X=monthly payment=$1,192.36

total repayments(360 months)=$1,192.36*360

total repayments(360 months)=$429,249.60

Total interest=total repayments(360 months)-loan amount

Total interest=$429,249.60-$210,000

Total interest=$219,249.60

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PLEASE HELP!!! Given the <1 is a complement of <2 and m<2 =47° , find m<1

PLEASE HELP!!! Given the &lt;1 is a complement of &lt;2 and m&lt;2 =47 , find m&lt;1

Answers

Answer:

43

133

Step-by-step explanation:

Complementary means that the two angles added together equal 90

90 - 47 = 43

Supplement means that the two angels added together equal 180

180 -47 = 133

PLEASE HELP IN THE NEXT 15 MINUTES!!!!!!!!!!

The Cross Bayou Bridge in Shreveport, Louisiana has trusses that form triangles. The exterior angle of one triangle has a measure of (5 - 3)°. If the two nonadiacent interior angles of the triangle are 43° and (3x)°, what is the value of the exterior angle, in degrees?

PLEASE HELP IN THE NEXT 15 MINUTES!!!!!!!!!!The Cross Bayou Bridge in Shreveport, Louisiana has trusses

Answers

The exterior angle of the triangle is 62°.

What is triangle?

A triangle is a form of polygon with three sides; the intersection of the two longest sides is known as the triangle's vertex. There is an angle created between two sides. One of the crucial elements of geometry is this.

Certain fundamental ideas, including the Pythagorean theorem and trigonometry, rely on the characteristics of triangles. The angles and sides of a triangle determine its kind.

Let us take the triangle as ABC.

Here \(m\angle C\)= 180-(5x-3)° [Because straight line angle is 180°].

We know that sum of all angles in triangle is add upto 180° Then,

=> \(m\angle A+m\angle B+m\angle C\)=180

=> 43°+3x°+180-5x+3=180°

=> -2x=180-180-43-3

=> -2x=-46

=> x=13°

Now exterior angle ,

=> 5x-3

=> 5*13-3

=> 65-3

=> 62°

Hence the exterior angle of the triangle is  62°.

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You are washing cars over the summer. It costs you $3 to wash each car and a one-time cost of $35 for some supplies to market your car wash. You plan to charge $10 per wash. Write an equation and solve to determine the amount of cars you need to break even.

Answers

The amount of cars you need to break even is 5.

To determine the number of cars you need to break even, we can set up an equation where the revenue equals the total cost.

Let's denote the number of cars as x.

Revenue = Number of cars × Price per wash

= x × $10

Total cost = Cost per car × Number of cars + One-time cost

= $3x + $35

To break even, the revenue should be equal to the total cost:

x × $10 = $3x + $35

Now, let's solve this equation to find the value of x:

10x = 3x + 35

Subtract 3x from both sides:

10x - 3x = 3x + 35 - 3x

7x = 35

Divide both sides by 7:

x = 35 / 7

x = 5

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I need a lil help, I am some how stuck here in math.​

I need a lil help, I am some how stuck here in math.

Answers

a. The value of c in the probability mass function when x is a discrete random variable is 0.15

b. The value of P(x > 3)  is 0.25

c. The value of P(3 ≤ x ≤ 5) is 0.15

d.  the probability that x is less than 6 given that it is greater than or equal to 1 is approximately 0.353.

What is probability mass function?

In probability mass function, sum of the probabilities for all possible values of x must be equal to 1

Thus,

0.2 + 2c + 0.2 + c + 0.1 = 1

Solve for c

c = 0.15

Hence, the probability mass function for x can be rewritten as;

x:      0     1     2   4     10

p(x): 0.2 0.3 0.2 0.15 0.1

To find P(x > 3), add the probabilities for all values of x that are greater than 3. The values greater than 3 are 4 and 10

sum of their  probabilities

P(x > 3) = P(x = 4) + P(x = 10)

= 0.15 + 0.1

= 0.25

To find P(3 ≤ x ≤ 5),sum the probabilities for all values of x between 3 and 5, inclusive:

P(3 ≤ x ≤ 5) = P(x = 4)

= 0.15

To find P(x < 6 | x ≥ 1), use the formula for conditional probability:

P(x < 6 | x ≥ 1) = P(x < 6 and x ≥ 1) / P(x ≥ 1)

To find the numerator, we sum the probabilities for all values of x between 1 and 5, inclusive

P(x < 6 and x ≥ 1) = P(x = 1) + P(x = 2) + P(x = 4)

= 0.3

To find the denominator, we sum the probabilities for all values of x greater than or equal to 1:

P(x ≥ 1) = P(x = 1) + P(x = 2) + P(x = 4) + P(x = 10)

= 0.85

Therefore, we have

P(x < 6 | x ≥ 1) = (0.3 / 0.85) ≈ 0.353

Thus, the probability that x is less than 6 given that it is greater than or equal to 1 is approximately 0.353.

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-15 divided by -1 2/3

Answers

Answer:

9

Step-by-step explanation:

15 / 5/3 = 15 x 3/5=9

Because a negative numebr divided by a negative number is always positive.

Answer:

9

Step-by-step explanation:

Use the distributive property to fill in the blank. 8 x (6 - 5) = (8 x ?) - (8 x ?)

Answers

P.M.D.A.S
P. Parentheses
M. Multiple
D. Divide
A. Add
S. Subtract

Hey there!

8 * (6 - 5)

= 8(6 - 5)

= 8(6) + 8(-5)

= 48 + (-40)

= 48 - 40

= 8


OR

8 * (6 - 5)

= 8(6 - 5)

= 8(1)

= 8


OR EVEN

8 * (6 - 5)

= (8 * ?) - (8 * ?)

= (8 * 6) - (8 * 5)

= 48 - 40

= 8


Thus, your answer is: (8 * 6) - (8 * 5)


Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

Solve the equation and state the solution and type of solution
5(x + 2) -3x = 2(x + 5)

Answers

Answer:

0=0

Step-by-step explanation:

5(x+2) -3x=2(x+5)

5x+10-3x=2x+10

5x-3x+10=2x+10

2x+10=2x+10

0=0

Please help me! My teacher gave us this and has only taught us about rectangles, not rhombi. My classmates and I are very confused​

Please help me! My teacher gave us this and has only taught us about rectangles, not rhombi. My classmates

Answers

Step-by-step explanation:

It is important to know that the diagonals of a rhombus are PERPINDICUALR bisectors of each other .   Opposite angles are equal and adjacen angles sum to 180 degrees .

Then remember alternate angles are equal  and there are 180 degrees inside of a triangle .....then you should be able to solve these...here is the first one

Please help me! My teacher gave us this and has only taught us about rectangles, not rhombi. My classmates

What is a tessellation, how are tessellations used, and what must happen at vertices in order for polygons to tessellate?

Answers

A tessellation is a pattern made by repeating geometric shapes without any gaps or overlaps. These shapes, called tiles or polygons, fit together perfectly to cover a plane or a surface. Tessellations can be found in various forms of art, architecture, and design. They are used to create visually appealing patterns and decorations, as well as to explore mathematical concepts.

Tessellations are utilized in various practical applications, such as tiling floors, walls, and pavements, designing mosaics and quilts, and creating computer graphics and textile patterns. They are also studied in mathematics to understand concepts like symmetry, geometry, and transformations.

For polygons to tessellate, certain conditions must be met at their vertices. At each vertex, the angles formed by the polygons must add up to a whole number of degrees, typically 360 degrees. In other words, the sum of the interior angles of each polygon meeting at a vertex must be a multiple of 360 degrees.

This ensures that the polygons can fit together seamlessly without leaving any gaps or overlaps. Examples of polygons that tessellate include equilateral triangles, squares, and hexagons, as their angles add up to 360 degrees at each vertex.

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Solve 8+q/−2=523 . Express the solution as a mixed number in simplest form.

Answers

Answer:

see image

Step-by-step explanation:

i worked this two different ways, depending on what your original question was. See image.

Solve 8+q/2=523 . Express the solution as a mixed number in simplest form.

Solve the logarithmic function log6

Answers

Answer:

Yo yo yo yoinayuajajaaiaiaiia

Step-by-step explanation:

bsjsjjajsjausuwuwhyy6uuuyyyyyyyyy666666666666666666666

Step-by-step explanation:

0.7781that's your answer

Arrange the following numbers from smallest to largest: 3.04, 3
10
3.024

Answers

Answer:

3, 3.024, 3.04, 10

I'm sorry if I misunderstood.

Good luck mate! :)

Please add Brainliest if you'd like, not that it matters.

Remember to try your best every day!

Convert this improper fraction into a mixed number. 13/6 ​

Answers

Answer: 2 1/6

Step-by-step explanation: 13/6 = 2 with remainder of 1

2 is whole number and the remainder remains as part of the fraction

12 Jana is writing a report about wages.
She has this information about the ages and weekly pay of eight men.
Age (years)
27
41
32
19
46
37
24
53
Weekly pay (£)
470
686
514
295
612
578
338
615
DO NOT WRITE IN THIS AREA
Jana wants to draw a diagram to see if there is a relationship between age and
weekly pay for these eight men.
(a) Draw a suitable diagram for Jana.
(3)

Answers

Answer:

Step-by-step explanation:

Federal law provides minimum wage exceptions under specific circumstances for (1) workers with disabilities, (2) full-time students, (3) employees under 20 years old in their first 90 consecutive days of employment, (4) tipped employees, (5) student learners, (6) apprentices, and (7) messengers

Solve the equation. Please help

Solve the equation. Please help

Answers

\(\cfrac{2y}{3}-\cfrac{3}{4}=\cfrac{1}{12}\implies \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{12}}{12\left( \cfrac{2y}{3}-\cfrac{3}{4} \right)=12\left( \cfrac{1}{12} \right)}\implies 8y-9=1 \\\\\\ 8y=10\implies y=\cfrac{10}{8}\implies y=\cfrac{5}{4}\)

So, to solve the equation we want to isolate y or in other words, have y (alone) on one side so that we can find out what y should have as a value.

Step 1: Add 3/4 on both sides
We get
2y/3 = 1/12+3/4
We add fractions by calculating a common denominator, adjusting the numerators accordingly and adding them. See this in action below:
12 and 4 have a common multiple in 12 which will be our common denominator. Now, 1/12 does not need to be adjusted, but 3/4 becomes 3*3 / 3*4 = 9/12.
In total 1/12 + 9/12 = 10/12

So, we have 2y/3 = 10/12

Now we multiply both sides by 3, so that the 3 will cancel out the 3 in the denominator on the left side:
2y =30/12

Now we just need to divide by 2 and get the solution:
y = 15/12 = 3*5 / 3*4 = 5/4

Therefore the final answer is A:
The solution set is {5/4}

will give brainliest to whoever answers first

This trapezoid has been divided into two right triangles and a rectangle.


How can the area of the trapezoid be determined using the area of each shape?


Enter your answers in the boxes.


The area of the rectangle is

in², the area of the triangle on the left is

in², and the area of the triangle on the right is

in².


The area of the trapezoid is the sum of these areas, which is

in².

will give brainliest to whoever answers firstThis trapezoid has been divided into two right triangles

Answers

Answer:

The area of the triangle on left is 9

in², the area of the triangle on the right is 9

in², and the area of the rectangle is 108

in².

The area of the trapezoid is the sum of these areas, which is 126

in².

A sample of 5 integers selected is shown. Does this sample represent the general rule for picking an integer from 1 to 25 in the population of integers from 1 to 1,000? Explain.

Answers

Answer:

No

Step-by-step explanation:

The general rule for picking sample from a population at random ensures that all members of the population have equal chances of being selected.

Therefore to select 5 samples in the range 1 - 25 from a population of integers from 1 - 1000.

Firstly, befure we start selecting our samples directly from the population since we are not interested in all integers, we seperatw the integers belonging to our target samples from the population first, the we select 5 samples out of the sepwratwd integers between 1 - 25. This ensures that all our 5 samples will have integers between 1 - 25 becausw integers 1 - 25 is the range we want our specs to be within and not between 1 - 100.

However, from the trial samples recorded none of the samples have integer between 1 - 25 ; jnecw, the samples must have been chosen directly from the entire population of 1 - 1000

 A sample of 5 integers selected is shown. Does this sample represent the general rule for picking an

The circle has center O, and its radius is 9 in. Given that m

The circle has center O, and its radius is 9 in. Given that m

Answers

solution

For this case we can do the following:

\(AB=2\pi r(\frac{x}{360})=2\pi\cdot9in(\frac{40}{360})=2\pi=6.283\text{ in}\)

And then the lenght of the ARC ACB would be:

\(\text{ACB}=2\pi(9)-2\pi=2\pi(9-1)=16\pi=50.265in\)

Final answer 16 pi

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