Mathematics Middle School

Use the substitution method to solve the system of equations. Choose the correct ordered pair. 2x-y=8 y=x-3

Answers

Answer 1

X = 5
explanation in the image below

Use The Substitution Method To Solve The System Of Equations. Choose The Correct Ordered Pair. 2x-y=8

Answer 2

Answer:(5,2)

Step-by-step explanation:

Related Questions

Which figure is shown?

A shape with a rectangular base and 4 triangular sides.
prism
pyramid
cylinder
cone

Answers

Answer:

The answer is pyramid .

Step-by-step explanation:

Pyramid has a rectangular or square base and 4 triangular sides .

Answer: the awnser is B the other guy is correct!!!!!!!!!!!!

A certain television is advertised as a 10-inch TV (the diagonal length). If the width of
the TV is 6 inches, how many inches tall is the TV?

Answers

Answer:

60?

Step-by-step explanation:

60/6 = 10?

idk if this is how that works lol

Find the inequality whose solution is the following:

Number line from negative 10 to 10, tick marks at every integer , labels at negative 10, negative 5, 0, 5, 10, open red circle on negative 7, red shading to the right of the red circle.

y + 5 > –2

y + 5 ≥ –2

y + 5 < –2

y + 5 ≤ –2

Answers

Answer:

y+5<-2

Step-by-step explanation:

Open circle means-less than or greater than.

Red shading to the right of -7 means the number is increasing.

So basically y+5<-2.

Can someone help me with 24 please?

Answers

Answer:

A(-3, -7) B(2,-1) C(-2,0) D(-5,6)

Step-by-step explanation:

A(3,7) B(-2,1) C(2,0) D(5,-6)

180 rotation around origin = (-x,-y)

A(3,7) - A(-3,-7)

B(-2,1) - B(2,-1)

C(2,0) - C(-2,0)

D(5,-6) - D (-5,6)

Answer:

A(-3, -7) B(2,-1) C(-2,0) D(-5,6)

Step-by-step explanation:

A(3,7) B(-2,1) C(2,0) D(5,-6)

180 rotation around the origin would equal (-x,-y)

A(3,7) - A(-3,-7)

B(-2,1) - B(2,-1)

C(2,0) - C(-2,0)

D(5,-6) - D (-5,6)

Which solid is a triangular pyramid?
A pyramid with triangular base.

A pyramid with rectangular base.

A pyramid with rectangular base.

A prism with a rectangular base.

Answers

Answer:

pyramid with triangular base

The solid which is a triangular pyramid is A pyramid with triangular base.

What is a Pyramid?

A pyramid is a three dimensional solid shape which has a flat base which is polygonal in shape and it has a triangular flat lateral faces, which joins at a point called vertex.

There are many kinds of pyramids like triangular pyramid, square pyramid, right pyramid etc.

Triangular pyramid has the base of the pyramid in triang7ular shape.

So there will be three lateral triangular faces where each of them has one side on the base.

So a triangular pyramid has a triangular base.

Hence the triangular pyramid has a triangular base.

Learn more about Triangular Pyramid here :

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What is the yintercept of the line given by the equation below? Enter your
answer as an ordered pair.
y=4/17x+5

Answers

Step-by-step explanation:

will mark as bianleast
The perimeter of the regular polygon shown is 15 m.

What is the side length of the polygon?

2.5 m

3 m

3.75 m

90 m

Answers

｡☆✼★ ━━━━━━━━━━━━━━ ☾

'Regular' suggests that all the lengths are equal

Thus, divide the perimeter by the number of sides

15 / 6 = 2.5

Your answer is A. 2.5m

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1. Solve the system using substitution (+20 pts)

y = 2x – 2
y = –3x + 13

Answers

Step-by-step explanation:

[tex]y=2x-2\\y=-3x+13[/tex]

[tex]2x-2=-3x+13[/tex]

[tex]5x-2=13[/tex]

[tex]5x=15[/tex]

x = 3

Now that we know x equals 3, we can plug it into one of the equations.

[tex]y=2(3)-2[/tex]

[tex]y=6-2[/tex]

y = 4

3, 4, 5, or 6 inches? Help plz

Answers

Answer:

3 inches

Step-by-step explanation:

25*20*h=750

500h=750

h=1.5

Height*2 = length of one of the cut corners

1.5*2=3

Therefore, 3 inches

Answer:

5 in

Step-by-step explanation:

x = number of in cut from each side

V = 750

V=lwh

l = 25 -2x

w = 20-2x

h =x

V = (25-2x)(20-2x)x

(25-2x)(20-2x)x = 750

4x^3-90x^2+500x-750=0

Factor it and solution is 5/2,5,15

clock lost 1 minute and 18 seconds in 39 days. How many seconds did it lose per day?

Answers

Answer:

2 seconds

Step-by-step explanation:

1 minute 18 seconds is 78 seconds. 78 divided by 2 is 39, so it lost 2 seconds per day.

In 39 days we have 3369600 seconds in total

And according to question we lost, 1 minute and 18 seconds, i.e., in total 78 seconds

So, in 1-day the clock will be lost

= 78/39 seconds

= 2 seconds

What is the scientific definition of time?

A measured or measurable period is a continuum that lacks spatial dimensions. Time is of philosophical interest and is also the subject of mathematical and scientific investigation.

What is space-time called?

It is a mathematical model that joins space and time into a single idea called a continuum. According to this the four-dimensional time.

Learn more about Time here

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Find the area of the circle. Round to the nearest tenth. Use 3.14 for 1.
16 m
The area of the circle is about
m?

Answers

Look at the attached picture

Hope it will help you

Good luck on your assignment

Answer:

Step-by-step explanation:

Radius either equals 16 or 8, so will have to do this calculation 2 times

[tex]A=\pi r^2\\=\pi *16^2\\=804.247\\=804.25m^2[/tex]

[tex]A=\pi r^2\\=\pi 8^2\\=201.0619\\=201.062\\=201.06\\=201.1m^2[/tex]

3 1/3 -(5 1/2 x-2 1/6 )+8 5/9 x

Answers

Answer:

Look at the attachment

anyone know the last number

Answers

Answer:

I think it is 52.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Amy just put new tires on her car. if the wheels have a diameter of 8 inches, a out how far does the wheel travel in 2 revolutions

Answers

Answer:

50.24 in

Step-by-step explanation:

to find how far it it will go you will need to find the circumference and times it by 2 to find the circumference the formula is 2*pi*radius so you would do 2*3.14*4 and that is 25.12 but since it is 2 revolutions you times 25.12 by 2

Answer:

50.24 in

Step-by-step explanation:

The first year of a charity walk event had an attendance of 500. The attendance increases by 5% each year. How many people will will attend in the 10th year ?

Answers

Answer:

750 people will have attended the charity walk

Step-by-step explanation:

if we start off as 500 people and we increase our people by 5 percent per year it would be 25 more people per year.

-1 x is a interger
write down the possible values of x

Answers

x can be any integer. This is because -1 multiplied by an integer is still an integer.

Solve for x rounded to the nearest tenth.
tan 35=16/x

Answers

It is equal to 16/35 and round to nearest tenth is 0.4571428

Please help me I am very stuck on this question.

Answers

Answer:Well what is it?

Step-by-step explanation: tell me your question.

Answer:

Hi there!

The correct answers for the question are:

For 45 mph, the trip time is: 9.78

For 55 mph, the trip time is: 8.36

For 65 mph, the trip time is: 7.38

Step-by-step explanation:

The values given to you represent the variable "S" so therefore you just plug in the values into the equation and you get "t"

FIRST TO ANSWER (CORRECTLY) GETS BRAINLIEST :))
I NEED HELP ASAP THO SO PLS HELP

Answers

Answer:

C and E

Step-by-step explanation:

A. 5* 1/6-5/6

B. 5*2/3=3 1/3

C. 5* 5/3=8 1/3

D5*6/7=4 2/7

E. 5*7/5=7

A:24cm
B:48cm
C:80cm
D:96cm

Answers

Answer:

B: 48 cm^2

Step-by-step explanation:

Area of triangle= 1/2 bh

There are two triangles in the problem.

h = 8

b = 12

1/2 (12) (8) = 48 cm^2

The scale factor of the dimensions of two similar wood floors is 5 : 3. It costs $144 to refinish the smaller wood floor. At that rate, how much would it cost to refinish the larger wood floor?

Answers

Answer: 240

Step-by-step explanation:

144/3 = 48

5x48= 240

Each visit to a water park costs $19.95. An annual pass to the park costs $89.95. Write an inequality to represent the number of times you would need to visit the park for the pass to be a better deal. Use x for your variable. Do not use $ in the awnser pls help

Answers

Answer:

4.5

Step-by-step explanation:

Answer:

It would be 4.7342 times to get the park pass

Step-by-step explanation:

x > (89.95/19.95)

x is the number of times you will have to visit the park in order to get a better deal.

____________________________________________________________

I'm assuming you want to know how many times you have to visit the park for the pass to pay off...

Let's say that "x" is the number of times you visit the park. So.

19.95x = 89.95

Divide both sides by 19.95 to get "x" alone

x = 4.509

We round the number to the nearest whole and...you'd have to go to the park at least 5 times.

(hope this helps can i plz have brainlist :D hehe)

1+1-2=

please answer haha it's easy but i wanna give points only to those who need it ;)

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

2-2=0

tnx fr the free points!!!

Pls HELPPPP!!!!!!!!!!

Answers

Hey!!!

here's your answer

Area of rectangular field=L*B

=9/10*1/2

=9/20 square mile

So the right answer is of option A

Hope it helps...

Good luck on your assignment

I say the answer is a

A cylindrical stool is 18 inches wide and 25 inches tall. What is the volume inside the stool?

Answers

Answer: The volume inside the stool is 6,361.72 cubic inches.

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Volume of a cylinder (V) : π x (diameter/2)² x height

The width of the stool is also the diameter of the stool.

Replacing with the values given and solving for v (Volume)

V = π x (18/2) ² x 25

V = 6,361.72 in3

In conclusion, the volume inside the stool is 6,361.72 cubic inches.

Feel free to ask for more if needed or if you did not understand something

What’s the difference in simplest terms, when you subtract 9/12 from 3 5/12

Answers

Answer:

2 2/3

Step-by-step explanation:

3 5/12 - 9/12

you need to make 3 5/12 an improper fraction to subtract

2 17/12 - 9/12 = 2 8/12

simplified: 2 2/3

Which equation is represented by the graph below?

Answers

Answer:c

Step-by-step explanation:

Answer:

A or C but i believe it to be C

Step-by-step explanation:

hi please help me w thisss
explain please thank uuu

Answers

Answer:-1 to the 8th powe

Step-by-step explanation:

Which graph represents a quadratic function that has one real zero

Answers

Answer:

In the figure attached, an example is given.

Step-by-step explanation:

No options are shown in the question, so I will answer it in general terms.

in the graph of a quadratic function that has one real zero the function intersect the x-axis only once. This means that the function intersects the x-axis at its vertex.

Answer:

its a

Step-by-step explanation:

What is the solution for t in the equation? 2/3t - 1/5t = 2

Answers

Answer:

t= 30/7 or 4 and 2/7 (depend on if the answer calls for improper or mixed number form. they're the same answer written in different forms.)

Step-by-step explanation:

First, you must simplify. 2/3 minus 1/5 equals 7/15. So, the simplified expression is 7/15t=2. Then you have to divide each side by 7/15 to separate t from its coefficient. 2 divided by 7/15 is equal to 2 times 15/7 becausedivision of fractions is done by multiplying by the reciprocal. 2 times 15/7 equals 30/7, or 4 and 2/7 when simplified.

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