Solving a System of Linear Equations Using the Graphing
Calculator
Solve the system of linear equations by graphing.
2r+3y = 169
5r=y+74
What is the solution to the system of linear equations? Round to the nearest tenth as needed.

Answer:

XXL = $19.75

Box of Breadstick = $3.5

Step-by-step explanation:

Given that:

Let :

cost per XXL pizza = x

Cost per box of bread stick = y

4x + 2y = 86 - - - (1)

6x + 4y = 132.50 - - - (2)

From (1): Divide (1) by (2)

2x + y = 43 - - - (3)

y = 43 - 2x

Substitute y = 43 - 2x into (2)

6x + 4(43 - 2x) = 132.50

6x + 172 - 8x = 132.50

-2x + 172 = 132.50

-2x = 132.50 - 172

-2x = - 39.50

x = $19.75

y = 43 - 2x

y = 43 - 2(19.75)

y = $3.5

Answer:

2 gallon bottle is the smallest because it would be 16 pints of cleaner and that is equal to 2 gallons.

Answer:

12:9

/3 =

4:3

Step-by-step explanation:

Answer:

$22.5

Step-by-step explanation:

4.20/7 is 6, so all you need to do next is 3.75*6, which is 22.5

Answer:

60

Step-by-step explanation:

you have to add 30 plus 30

Answer:

p - 3

Step-by-step explanation:

[tex] - 3 + p = p - 3[/tex]

Answer:

A

Step-by-step explanation:

7(x+4)<= 2(x-5)+3(x+9)

7x+28<= 2x-10+3x+27

7x+28<= 5x+17

-5x         -5x

2x+28<= 17

-28         -28

2x<= -11

/2      /2

x<= -5.5

The radius of the smaller circle is 8 - 4√3 .

Radius of a circle is defined as any line joining the center and the circumference of the circle.

In the given figure we have to construct a few lines to solve the problem.

The complete diagram is attached below.

PQ is drawn joining the two centers of the circles.

PB⊥AD is drawn.

RQ⊥PB is drawn.

Now from the circle Q , QC = r (given) ∴ CD = r (same as radius)

Diameter of circle P is 4 , ∴ radius = 4 ÷ 2 = 2

Therefore AB = 2 ( radius)

Now AB + BC + CD = 6

or, 2 + BC + r = 6

or, BC = 4 - r

Therefore RQ = 4 - r

PQ = 2 + r (sum of both radius)

PR = PB - RB = 2 - r ( PB = QC )

Now in ΔPQR:

PR² + RQ² = PQ² (By Pythagoras theorem as ∠PRQ = 90°)

Substituting the values we get:

( 2 - r )² + ( 4 - r )² = ( 2 + r )²

or, 4 - 4r + r² + 16 - 8r +  r² = 4 + 4r + r²

or,  r² -16r +16 = 0

or,  r² - 2 × r × 8 + 8² = 8² - 16

or, (r - 8)² = 48

or, r - 8 = ± √48

or, r = 8 ± √48

or, r = 8 - 4√3

Now the value of r cannot be more than 8 hence the radius is

8 - 4√3 .

To learn more about radius visit:

https://brainly.com/question/11137975

#SPJ1

Answer:

25

Step-by-step explanation:

40+20=60

and 60-35=25

Answer:

25 points

Step-by-step explanation:

starts with 40

earns 20, so now she has 60

so she then loses 35

so now she has 25 points

40+20-35=?

40+20=60

60-35=25

Check: 25+35=60

Hope this helped!

Answer: motorcycle engine capacity = 0.6 L

Step-by-step explanation:

i did the assignment on edge...it is correct.

Have a great day ya'll!!

Answer:

0.6L

Step-by-step explanation:

did it on edge 2020 chemistry assignment

4060520304;

I don't know if I am write or wrong

Answer:

I don't know nothing its here

Step-by-step explanation:

please mark me as brainliest thank you

Answer:

293.61 =

 200  

   90  

       3  

  0.6

  0.01

Step-by-step explanation:

Answer:

x=1 and y=4

Step-by-step explanation:

10x+y=14

2x-y=-2

12x=12; x=1

put x in the problems and y is 4

Answer:

1 crayon each, because you can not have 1.8 crayons

Step-by-step explanation:

Out of the total 9 crayons, each student will get 1 crayon.

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given is a teacher who wants to split 9 crayons between 5 students equally.

A total of 5 students will have → 9 crayons

Then 1 student will have → 9/5 → 1.8 crayons.

Since crayons cannot be in fractions and the distribution should be equal among all students, therefore, each student will get 1 crayon and the remaining 4 cannot be divided equally among them.

Therefore, out of the total 9 crayons, each student will get 1 crayon.

To solve more questions on Unitary method, visit the link below-

https://brainly.com/question/21105956

#SPJ2

Answer:

64

8x3

125x9

Step-by-step explanation:

The answer for it on edge would be: A, C, and F

Answer:

20

Step-by-step explanation:

75% percent of 20 is 15

Answer:

its 23

Step-by-step explanation:

i took the test

Answer:

B) Half of her classmates have a sibling, and half do not.

Step-by-step explanation:

"Add totals for classmates who have chores and those who do not have chores for each group..

7 + 8 = 15

9 + 6 = 15"

Answer:

No it gets smaller if a shape is dilated by the scale of 1/3.

Step-by-step explanation:

That's correct!

Hopes it helps;)

Answer:

the three-month weighted moving average forecast is 9.62%

Step-by-step explanation:

The computation of the three-month weighted moving average forecast is shown below:

= Weight × rate of interest + Weight × rate of interest + Weight × rate of interest

= (0.2 × 9.7) + (0.4 × 9.6) + (0.4 × 9.6)

= 9.62%

Hence, the three-month weighted moving average forecast is 9.62%

We simply applied the above formula so that the correct value could come

And, the same is to be considered

Answer: 1.3 (Estimated)

Work: To find that out, I divided 4 minutes by 3 laps, and that's 1.333... In which I rounded that to 1.3.

The number of laps covered in 1 minute will be 1.3.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Mai runs 3 laps around the track in 4 minutes. The number of laps will be calculated as,

N = 4 / 3

N = 1.3 Lap

Therefore, the number of laps covered in 1 minute will be 1.3.

To know more about an expression follow

https://brainly.com/question/13848183

#SPJ2

Answer:

18

Step-by-step explanation:

6^2 / 3 + 6

36 / 3 + 6

12 + 6 = 18

Answer: 18

Step-by-step explanation:

(6)^2 / 3 + 6

36 / 3 + 6

18

Answer:

The solution is ;  x = 5  and y= -7

Step-by-step explanation:

The two inequality equations are given as;

2x + 2y = -4 ------------{i}

4x  +  y = 13 ------------{ii}

Making the x terms equal by multiply equation {i} by 4 and {ii} by 2 to get

{2x + 2y = -4 } 4

{4x  +  y = 13 } 2

8x + 8y = -16

8x  + 2y =  26

        6y = -42

         y= -42/6

        y= - 7

Use y= -7 in the equation  4x + y = 13

4 x - 7 = 13

4x = 13 + 7

4x = 20

x= 20/4

x= 5

The solution is ;  x = 5  and y= -7

Hello!

[tex]\large\boxed{\text{D = 255pi in or 800.7 in}}[/tex]

Solve for the distance by solving for the circumference of the wheels:

C = 2rπ

C = 2(8.5)(π)

C = 17π

The wheels make 15 rotations, so multiply the circumference by 15:

17π × 15 = 255π or ≈ 800.7 inches

Answer:

64

Step-by-step explanation:

There are multiple squares and rectangles in this figure that needs to be broken apart. What your end goal is is to add up the area of each rectangle and square you dissected from this figure.

No further words, lets let my mouse-writing do the talking.

Answer:

Step-by-step explanation:

Area A: 6*2 = 12

Area B: 4*3 = 12

Area C: 10*4=40

Total                64

The top rectangle is A

The Middle rectangle is B

The Bottom rectangle is C

Sorry this just does not copy the way I wanted it to.

Answer:

Step-by-step explanation:

If you plot the vertex and the focus, you'll see that the focus is 2 units above the vertex. That tells us 2 things: first, that the parabola opens upwards and, second, that the value of p in our equation is 2 (since p is the number of units between the vertex and the focus). The equation is:

[tex](x-h)^2=4p(y-k)[/tex] where h and k are the coordinates of the vertex and p is the number of units between the vertex and the focus. The vertex is given as (-6, 8), so h is -6 and k is 8. p is 2, so filling in we get:

[tex](x+6)^2=4(2)(y-8)[/tex] which simplifies down to

[tex](x+6)^2=8(y-8)[/tex]

Not sure in what form you need it, so I'll leave it like that and you may have to do some algebraic manipulation to get it into the form your teacher wants it in.

Answer:

original price is 48 dollars which is 100% cost. we know that 12 is 1/4 of 48 so 1/4 of 100% gives 25%.

Step-by-step explanation:

Answer:

fghwjklpkjqkhb cghdbhn bwn x wxhw hwbmx

Step-by-step explanation: