Solve the system of equations.
y = 9x
y= 2x+56

Answers

Answer 1

Answer:

(8, 72)

Step-by-step explanation:

Here we have two separate equations for y:  y = 9x and y = 2x + 56.

Equating these equations eliminates y temporarily; we get:

9x = 2x + 56, or 7x = 56.  Dividing both sides by 7 results in x = 8.  

Then, by the first equation, y = 9(8) = 72.

The solution is (8, 72).


Related Questions

please answer dis question

Answers

Answer:

1

Step-by-step explanation:

A = 4

B = 5

Theres a 1 number diffrence.

(sorry if its wring its 12am im tired-

Marshall compared his 8 most recent cell phone bills. They were $102, $97 $98 $102 $98 $104 $95 and 102 what was the mode cost

Answers

Answer:

$102

Step-by-step explanation:

The word MODE is a statistical term that refers to the number in a given set of data that occurs the most.

In the above question, we are given the set of data:

$102, $97, $98, $102, $98, $104, $95 and $102

Rearranging, we have:

$95, $97, $98, $98, $102, $102, $102, $104.

The mode cost in the given data set above is the phone cost bill that occurred the most and this is $102.

$102 occurred 3 times in the data set.

should i add, multiply, subtract, or divide n+16=9

Answers

Answer:

subtract

Step-by-step explanation:

16 from 9

n = 9 - 16

n = -7

PLEASE PLEASE PLEASE HELP!!

Answers

Answer:

B is the answer.

Since 7 and 12 are both the legs of the right triangle, we are going to use pythagorean theorem.

[tex] {7}^{2} + {12}^{2} = {c}^{2} [/tex]

Isolate side c

[tex] \sqrt{ {7}^{2} + {12}^{2} } = c[/tex]

pls help i will give brainliest

Answers

The answer is c. 28.26 cm^2

Answer:

28.26

Step-by-step explanation:

A

=

π

r

2

=

π

·

3

2

28.27433

can someone please help me​

Answers

Answer:

i think just 2

Step-by-step explanation:

Answer:

-x²-12x+6 is your answer

Justin has 50. Pictures in his album

Answers

Answer:

im sorry i cant read that

Step-by-step explanation:

its to far away :(

can someone please help me with this asap due today 6th grade work

Answers

Answer:

19

Step-by-step explanation:

133 divided by 7 = 19

area of a parallelogram is just L x W so just divide to get the base.

For what value of k does the equation 6(x + 1) + 2 = 3(k5x + 1) + 3 have no solution?

Answers

Answer:

k = (6/15)

Step-by-step explanation:

The equation is:

6*(x + 1) + 2 = 3*(k*5*x + 1) + 3

To have no solutions, we need to have something like:

x + 7 = x + 4

where we can remove x in both sides and end with

7 = 4

So this equation is false, meaning that there is no value of x such that this equation is true, then the equation has no solutions.

First, let's try to simplify our equation:

6*(x + 1) + 2 = 3*(k*5*x + 1) + 3

6*x + 6 + 2 = 3*k*5*x + 3*1 + 3

6*x + 8 = 15*k*x + 6

if 15*k = 6, then the system clerly has no solution.

then:

k = 6/15

then we get:

6*x + 8 = (6/15)*15*x + 6

6*x + 8 = 6*x + 6

8 = 6

The system has no solutions.

PLEASE HELP ME! URGENT!!
What is the DIFFERENCE, in centimeters, between the
Circumference of the Inner circle and the circumference of the
Outer circle? Use 3.1415 for 7.

Answers

2•3.1415•9 = 56.547 for outer circle
9-2 = 7for radius of inner circle
2•3.1415•7 = 43.981
56.547 - 43.981 = 12.566
rounded to the nearest hundredth is 12.57

Answer:

12.566 m or 1,256.6 cm

Step-by-step explanation:

Find the circumference of both circles and subtract the circumference of the smaller circle from the larger circle.

C = 2πr or πd

C (larger) = 2(2+9)π or 22π

C (smaller) = 2(9)π or 18π

Difference = 4π or 4(3.1415) which equals 12.566

For of x for. X+3y=-3

Answers

Answer:

x = -3y - 3

Step-by-step explanation:

x + 3y = -3

Subtract 3y from both sides;

x = -3y - 3

Complete the equation of the line whose slope is -5/3
and y-intercept is (0, -2).

Answers

Answer:

these are tough,   it takes a lot of practice to get used to these, sooo

Step-by-step explanation:

we know the slope, m= -5/3,   and we're given a point so use the point slope formula

y= mx + b

the point we are given is in this form  (x,y)

then plug the information into our point slope formula

y = (-5/3) x  + (-2)

y = -5x/3 -2

help please I will give brainiest​

Answers

Answer:

30ft for the first and the second is 8ft

30 ft and 8 ft hope this helps

Hello, what do I write on my number line?

Answers

Answer:

1/2,1/2,1/2,1/4,1/4,1/4,3/4,3/4

Step-by-step explanation:

I hope it helped!

1/2 1/2 1/2 1/4 1/4 1/4 3/4 3/4

Please help me, its due in a few minutes. There are multiple slides!
Not trying to be picky but please answer all if able to!

Answers

Answer:b

Step-by-step explanation:

Answer:

1- B

2- D

3- ?

4- B

5- ?

PLEASE HELP I'LL GIVE THE BRAINLIEST
Part F
Open the line segment reflection application. Line segment AB is a reflection of line segment CD across the x-axis. Click the reflect over x-axis button. Are line segments AB and CD the same? What does this mean about how a line segment changes when you reflect it?​

Answers

Answer:

Step-by-step explanation:

Line segment AB is reflected across x-axis to form segment CD.

Since, refection is a rigid transformation,

Length of the segment will be same.

But y-coordinates of the extreme ends of the image segment will change in sign notation.

Since, signs of y-coordinates gets changed, sign notation of the slope (image segment) will also get changed (Slope of AB → negative, slope of CD → positive)

Mike went on a vacation to ohio.When he went home the odemeter read 7,219.4 miles.When he returned home the odemeter read 8,192.6 miles.How many miles did mike travel?

Answers

Answer:

973.2 miles

Step-by-step explanation:

miles travelled = miles on the odemeter after the trip - miles on the odemeter before the trip

8192.6 - 7219.4 = 973.2

what equation do you have to do to get the number pi

Answers

Answer:

In some ways Pi (π) is a really straightforward number – calculating Pi simply involves taking any circle and dividing its circumference by its diameter.

Answer:

there really is no equation to get the number pi, it is a very straight forward number representing 3.14

Fill in the blank to make this a Perfect Square Trinomial.

x^2 + ____ x + 9

Answers

the answer is 6, x^2+6x+9. If you factor, (x+3)(x+3), multiply out, x^2+3x+3x+9=X^2+6x+9

Write an equation of the line with a slope of -2/7 and a y-intercept of 5.

Answers

the formula is y=mx+b

mx is the slope and b is the y-intercept

y=-2/7+5

---

hope it helps

what is 2+2



I will give brainiest to whoever answers first.

Answers

The answer to your question is 4

Brainiest:):):):):):):)

Answers

Answer:

1.x=24

2.x=18 :)

Step-by-step explanation:

Have a great dayyyyyy

Marissa is reading over her blood work results from her doctor. According to the report, there are about 3.7 × 105 platelets and about 9,300 white blood cells in a microliter of blood.

What is the total number of platelets and white blood cells in a microliter of blood?

Answers

Answer/Step-by-step explanation:

First Multiply the given expresion --> 3.7 * 105

3.7*105 =  388.5

Therefor there is 388.5 platelets.

There is 9300 white blood cell.

Sicne you are finding out the TOTAL of BOTH TOGETHER you add them.

388.5 + 9300 = 9688.5

ANSWER: 9688.5 in total.

Answer:

3.8 × 105

Step-by-step explanation:

Add to find the total number of platelets and white blood cells in a microliter of blood.

First, write the number of white blood cells in scientific notation.

Now that both numbers are written in scientific notation, compare the exponents. Since both exponents are not the same, rewrite 9.3 × 103 as 0.093 × 105. Now the numbers multiplied by the powers of 10 can be added while keeping the power of 10 the same.

So, there are about 3.8 × 105 platelets and white blood cells in a microliter of blood.

Find the inverse of the function
g(x)=2x+5
algebraically.

Answers

*g(x) = y*
2x + 5 = y
2x = y - 5
x = (y - 5)/2

*Inverse*
g^-1(x) = (x-5)/2

the question is in the picture below ​

Answers

Answer:

6061/3 in exact form

2020.3 in decimal form

2020 1/3 as a mixed number

Step-by-step explanation:

Answer:

the answer to the equation is 96

hope this is the answer you are looking for

Step-by-step explanation:

Which expression represents the greatest factorization of 32w - 56xy

Answers

Answer:

Factor 8 out of 32w - 56xy

8 ( 4w - 7xy )

GCF of 32 and 56 is 8.

So we have 4(8w)-7(8xy)

---

sry if i didn't help

3. If four times a number, increased by 5, is the same as three times a
number increased by 12, find the number,

Answers

Answer:

7

Step-by-step explanation:

Write the equation

4x+5=3x+12

Solve for x

4x-3x=12-5

x=7

A season has96 home games. If you purchase a season ticket in the bleacher section, what is the cost per game,in dollars, for this ticket

Answers

Answer:

$8.4375 per game

Step-by-step explanation:

From. The picture attached :

Season long Ticket cost for the bleachers sitting area is : $810

Given that the number of home games in a season is 96

The cost per unit of game could be calculated as :

Cost of season long Ticket / number of home games

= $810 / 96

= $8.4375

$8.4375 per game

Please answer AND Explain ASAP. Whoever has the best explanation will get brainiest

I'm trying to understand this!!

Answers

Answer:

eric=12

bill=16

Step-by-step explanation:

you can solve this using two simple algebraic equations. this is the key I will be using:

x=bill

y=Eric

x+y=28

x=y+4

since x is by itself in the second equation, I can replace the x in the first equation with y+4

(y+4)+y=28

subtract 4 from both sides

y+y=24

which is also 2y=24

divide both sides by two.

y=12

so now we know Eric is 12 years old.

using this, we can replace the "y" in the second original equation (x=y+4)

x=12+4

x=16

Bill is 16 years old.

PLEASE HELP!
Find the surface area of the cylinder with diameter 20 in. and height 2 in. Use 3.14 for
pi.

Answers

Answer:

[tex]\boxed {\boxed {\sf SA= 753.6 \ in^2}}[/tex]

Step-by-step explanation:

The surface area of a cylinder is found using this formula.

[tex]SA=2 \pi rh+ 2 \pi r^2[/tex]

We know the diameter is 20 inches and the height is 2 inches. We must find the radius.

The radius is half the diameter. r= d/2 r= 20 in /2= 10 in

Now we know that:

[tex]r= 10 \ in \\h= 2 \ in[/tex]

Substitute the values into the formula. Also, plug 3.14 in for pi.

[tex]SA=2 (3.14)(10 \ in)(2 \ in)+ 2 (3.14)(10 \ in)^2[/tex]

Solve according to PEMDAS: parentheses, exponents, multiplication, division, addition, and subtraction.

Solve the exponent.

(10 in)²= 10 in * 10 in= 100 in²

[tex]SA=2 (3.14)(10 \ in)(2 \ in)+ 2 (3.14)(100 \ in^2)[/tex]

Multiply all the numbers together.

[tex]SA=2 (3.14)(20 \ in^2)+ 2 (3.14)(100 \ in^2)[/tex]

[tex]SA=125.6 \ in^2+628 \ in^2[/tex]

Add.

[tex]SA= 753.6 \ in^2[/tex]

The surface of the cylinder is 753.6 square inches.

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