Mathematics Middle School

Use the graph and the following equations to select the choice that best describes
the solution:
y = 2x and y = x + 20.

Use The Graph And The Following Equations To Select The Choice That Best Describesthe Solution:y = 2x

Answers

Answer 1

Answer:

(40, 20)

Step-by-step explanation:

first substitute 2x for y in y = x + 20: 2x = x + 20

flip the equation: x + 20 = 2x

subtract 20 from both sides: x + 20 - 20 = 2x - 20

simplify: x = 2x - 20

subtract 2x from both sides: x - 2x = 2x - 2x - 20

simplify: -x = -20

divide both sides by -1: -x/-1 = -20/-1

simplify: x = 20

substitute 20 for x in y = 2x or y = x + 20: y = 20 * 2 or y = 20 + 20

x = 20 y = 40

(40, 20)

Answer 2

Answer:

(20,40)

Step-by-step explanation:

First one: y=2x

y=40

x=20

40=2(20)

40=40 true

Second one:  y=x+20

y=40

x=20

40=20+20

40=40 true

therefore the answer is (20,40)

Related Questions

Does anyone have the answer key to "Understand Systems of Linear Equations I-ready level H instruction?"

Answers

Answer:

no bro, sorry. even though I needed to I don't have it

.........................................

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Answers

Answer:

P'(-4, -2)Q'(2, -2)R'(2, -5)

Step-by-step explanation:

Use the given (x, y) coordinates in the transformation formula and simplify.

Transformation

This transformation translates each point right 1 and down 6.

  (x, y) ⇒ (x+1, y-6)

Application

  P(-5, 4) ⇒ P'(-5+1, 4-6) = P'(-4, -2)

  Q(1, 4) ⇒ Q'(1+1, 4-6) = Q'(2, -2)

  R(1, 1) ⇒ R'(1+1, 1-6) = R'(2, -5)

Additional comment

The notation is a bit unconventional. It appears that P' (P prime) is being represented as P^I, which would be interpreted as P with an exponent of I (eye). The "prime" is usually an apostrophe. P' conventionally means the image of point P after some transformation.

simplify the quotient \(\sqrt{\frac{5}{2\sqrt{7} } }\)

Answers

Exact Form (square root of 7 is inside square root of 70 and it is all over 14):
√70√7
————-
14
Decimal Form:
0.97206542...

Answer:

14

Decimal Form -0.97206542

Step-by-step explanation:

The publisher chooses to have front and back covers
with a thickness of
of an 1/3 inch instead.
Write an equation that represents the NEW total width of the book, y, for every 100 pages of paper, x.

Answers

I’m sorry I don’t really know how to answer this but Ik someone who can

What is the measure of the exterior angle?

What is the measure of the exterior angle?

Answers

Check the picture below.

What is the measure of the exterior angle?
44, it’s a 30 60 90 triangle so 3x=30 and 5 x 10= 50 then 50-6

Which is a relation is a function of x?

Which is a relation is a function of x?

Answers

Answer:

bottom (last) option

Step-by-step explanation:

The bottom curve is the only function fit with "one to one " or "injective" property.

The last option is your answer
Have a nice day :)

For each given slope and y- intercept, complete the equation of the line. Then complete the ordered pairs that you would find on the graph of the line. (use decimal notation if necessary).

For each given slope and y- intercept, complete the equation of the line. Then complete the ordered pairs

Answers

Answer: y= 1/5x+2 and 3/5x+3 and spmeyjonddhoiwejs

Step-by-step explanation:

The table shows the results of randomly selecting a colored cube from a bag 80 times. The cube was returned to the bag after each selection.

Based on these results, what is the expected probability of randomly selecting a red cube from the bag in one attempt?

A) 0.20
B) 0.04
C) 0.24
D) 0.30

The table shows the results of randomly selecting a colored cube from a bag 80 times. The cube was returned

Answers

The answer is not A or C because it doesn’t work out so it could be D or A The answer is A
It’s B 0.04 I hoped that helped

A comet travelling through space at a rate of 75 miles per hour has just flown into a huge amount of space dust. This dust decreases the speed of the comet by 15 miles every hour, until it completely stops moving. Which are the domain and range of the linear function that represents this relationship?

Answers

Answer:

Linear function: y = -15x + 75

Domain: x ≤ 5

Range: y ≥ 0

Please tell me if there are any mistakes in my answer and I will correct them.

Step-by-step explanation:

The linear function is y = -15x + 75, written in y=mx+b form. X is the amount of hours. Since the speed is decreasing, we will use -15. Since we started at 75 miles per hour, our b value will be 75.

Domain

The domain is all the possible values for x.

Since the comet slows down by 15 miles every hour until it stops moving, we can solve for x by putting in 0 for y.

0 = -15x + 75

15x = 75

x = 5

Therefore, the domain is x ≤ 5.

Range

The range is the set of all possible values of y. In this case, the range can be anything but 0 in order for the equation to make sense.

So, the range is y ≥ 0.

Answer:

domain is 0,5

Step-by-step explanation:

after 5 hours, it stops moving

Determine whether they are similar triangles or not.
Prove your answer.

Determine whether they are similar triangles or not.Prove your answer.

Answers

angle BAC = angle DAE (common angle)
angle BCA = angle DEA (corr. angles, BC//DE)
angle BAC = angle ADE (angle sum of triangle)

Therefore, ABC ~ ADE (AAA)

what is 21 divided by 3 + (8 -2 +2)

Answers

15 Bc is u do (8-2+2) it’s still 8 so 21 divided by 3 is 7 plus 8=15

Answer:

15

Step-by-step explanation:

21/3+(8-2+2)

PEMDAS

In the parentheses, we can easily learn that the minus two plus two cancels each other out.

21/3+8

7+8

15

If anything is confusing, let me know and I'll explain it more.

1 foot = 12 inches
2 feet 7 inches = |_| inches

Answers

Answer:

Step-by-step explanation:

H

Answer:

12+12=24. 24+7=31

Step-by-step explanation:

31 inchess

Find the midpoint of the line segment with end coordinates of: (−3,−1)and (−4,2) Give coordinates as decimals where appropriate.

Answers

Answer:

ANSWER

M=(−72,12).

Step-by-step explanation:

The midpoint for two points P=(x1,y1) and Q=(x2,y2) is

M=(x1+x22,y1+y22).

We have that x1=−3, y1=−1, x2=−4, y2=2.

So, M=(−3+(−4)2,−1+(2)2)=(−72,12)

Answer:

The answer is

( - 3.5 , 0.5)

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

\(M = ( \frac{x1 + x2}{2} , \: \frac{y1 + y2}{2} )\)

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(−3,−1) and (−4,2)

The midpoint is

\(M = ( \frac{ - 3 - 4}{2} \: , \: \frac{ - 1 + 2}{2} ) \\ = ( - \frac{7}{2} \: , \: \frac{1}{2} )\)

We have the final answer as

( - 3.5 , 0.5)

Hope this helps you

What’s 1000+2000+3000+4000+5000+600+70+80+9+69+12+35,574=
The best answers get brainliest

Answers

Answer:

51414

Step-by-step explanation:

1000+2000 = 3000

3000+4000 = 7000

5000+600+70 = 5670

3000 + 5670 = 8670

8670 + 7000 = 15,670

80+9+69+12+35,574= 35744

35744 + 15,670 = 51414

Answer:

1000+2000+3000+4000+5000+600+70+80+9+69+12+35,574= 51,414

so basically you can just tell me where the boxes go and bam you get 20 points

so basically you can just tell me where the boxes go and bam you get 20 points

Answers

Step-by-step explanation:

(2/3)(-4)(9) = -24

(5/16)(-2)(-4)(-4/5)= -2

(-3/4)(7/8)=-21/32

(2 3/5) (7/9)=91/45

(2/3) x (-4)(9) -> -24
(5/6) x (-2)(-4) x (-4/5) -> -2
(-3/4) x (7/8) -> -21/32
(2 3/5) x (7/9) -> 91/45

i need the answer to this please ;) and quick

i need the answer to this please ;) and quick

Answers

Answer: Yes

Step-by-step explanation:

10: 10, 20, 30, 40, 50 , 60, 70, 80 , 90, 100, 110, 120

12: 12, 24, 36, 48, 60, 72, 84, 96, 108, 120

Both have 120 as a common multiple.

Answers -Yes
and 120 is the commom multiple

The question is in the photo, please help

The question is in the photo, please help
The question is in the photo, please help

Answers

Answer:

C is one and maybe B

Step-by-step explanation:

Sorry if wrong

Answer:

The answers are -7/10, -1/2 I believe.

The data given represents the height of basketball players, in inches, on two different girls' teams.


Allstars
73 62 60
63 72 65
69 68 71
66 70 67
60 70 71
Champs
62 69 65
68 60 70
70 58 67
66 75 70
69 67 60


Compare the data and use the correct measure of center to determine which team typically has the tallest players. Explain your answer.
The Allstars, with a mean of about 67.1 inches
The Champs, with a mean of about 66.4 inches
The Allstars, with a median of about 68 inches
The Champs, with a median of about 67 inches

Answers

Answer:

45

Step-by-step explanation:

The Allstars team has the higher mean and median compared to Champs team. Therefore, the Allstars has the tallest players.

Using Mean and Median to Decide the Tallest Team

By using mean and median, we can know which team typically has the tallest players

For the Allstars:

Mean: The mean height of the Allstars team is obtained by summing up all the heights and dividing by the total number of players:

Mean = (73 + 62 + 60 + 63 + 72 + 65 + 69 + 68 + 71 + 66 + 70 + 67 + 60 + 70 + 71) / 15 ≈ 67.1 inches

Median: The median height of the Allstars team is the middle value when the heights are arranged in ascending order:

Arranging the heights in ascending order: 60, 60, 62, 63, 65, 66, 67, 68, 69, 70, 70, 71, 71, 72, 73

Median = 68 inches

For the Champs:

Mean: The mean height of the Champs team is obtained by summing up all the heights and dividing by the total number of players:

Mean = (62 + 69 + 65 + 68 + 60 + 70 + 70 + 58 + 67 + 66 + 75 + 70 + 69 + 67 + 60) / 15 ≈ 66.4 inches

Median: The median height of the Champs team is the middle value when the heights are arranged in ascending order:

Arranging the heights in ascending order: 58, 60, 60, 62, 65, 66, 67, 67, 68, 69, 69, 70, 70, 70, 75

Median = 67 inches

The Allstars team typically has the tallest players. The mean height of the Allstars team is about 67.1 inches, while the mean height of the Champs team is about 66.4 inches. Additionally, the median height of the Allstars team is about 68 inches, while the median height of the Champs team is about 67 inches. Both the mean and median heights of the Allstars team are higher, indicating that, on average, the Allstars team has taller players compared to the Champs team.

Learn more about mean and median here:

https://brainly.com/question/20118982

#SPJ1

The Graf family made two pizzas. They ate 1 and 1/8 pizza before watching a movie, and 1/2 pizza more after the movie. What is a reasonable estimate for the amount of pizza left? Tammy chose A as the correct answer. How did she get that answer?

Answers

Answer:

3/8

Step-by-step explanation:

So 1 pizza was already eat right and 1/8 was eating I'm assuming it 1/8 then 1/2 is 4/8 so add that witch is 5/8 so 5/8 - 8/8= 3/8

Answer:

There were 3/8s left

Step-by-step explanation:

1 1/8 + 1/2 = 1 5/8

2- 1 5/8= 3/8

4(2x + 3) ÷ 5y

From the expression above, provide an example of each of the following: sum, term, product, factor, quotient, and coefficient. If any are not present, write "not present."

Answers

Answer:

8x+12/5y

Step-by-step explanation:

This would be done using the PEMDAS form

8x+12/5y, by doing P.E.M.D.A.S.

i need help with this question please help me

i need help with this question please help me

Answers

Answer:

The answer is D.

Step-by-step explanation:

y = mx + b

C = 5/9 (F - 32)

C = 5/9F - 5/9 (32)

Option (D) is correct.

Estimate the weight of apples, please!

Estimate the weight of apples, please!

Answers

Answer:

1440

Step-by-step explanation:

Hope it helps!

How do I put this into a paragraph , you get 76 points so please answer

How do I put this into a paragraph , you get 76 points so please answer

Answers

Write it all together I think

Answer:

put it all together and write normally

Step-by-step explanation:

Campbell has saved $28. He needs $70 to buy a new skateboard. What decimal value is equivalent to the fraction of the cost that Cambell has saved.

Answers

0.4, or 40% is the correct answer

28/70= 40%
0.4 or 40 percentage

The unit of money in Kenya is the shilling.
In September 1999, $ 1.00 from the United States was worth about 76 shillings. A traveler returning to the United States from Kenya wants to exchange 9500 shillings for dollars. At the exchange rate, how many dollars will the traveler receive?

Answers

125$ sorry if im wrong mark branliest please

What is 2x - 2x?

I dont get it!

Answers

Answer:

0

Step-by-step explanation:

that would equal 0, they are both x so we can subtract them

2-2=0

Answer:

its zero

Step-by-step explanation:

2x - 2x can be also written as 2-2 + x-x. the 'x' here is a variable that can be any number ..now..

2-2=0

x-x=0

so your answer is 0

Given the linear function -8x + 4y = 12, circle all of the following that are equivalent representations. Explain using the properties of linear functions.

A.
y = 2x + 3

B.
y = ½x + 3

C.
image

D.
image

E.
A line through the following points:

image

F.
A graph through the following points:

image

Answers

Answer:

x-intercept(s): ( 12 , 0 ) y-intercept(s): ( 0 , 3 )

Step-by-step explanation:

i Honestly dont know but these are the x and y intercepts

Alice has three boxes to carry. One box has of mass of 1.453 kilograms. The second box has a mass of 3.8 kilograms. The third box has a mass of 11.39 kilograms. What is the total mass of the three boxes?

Answers

Answer:

16.643 Kilograms

Step-by-step explanation:

Total means the sum of the number in this situation so first, you add

1.453 kg and 3.8 kg = 5.253 kg

then you add

5.253 kg and 11.39 kg = 16.643 kg

so the answer is 16.643 kilograms.

Answer:

16.643

Step-by-step explanation:

just add it together

I have 60% on my iPad and my brother has 90% on his how much more percentage I need as a fraction.

Answers

Answer:

1/3

Step-by-step explanation:

just convert it?

3/10

Step-by-step explanation:

60% is the same as 60/100

90% is the same as 90/100

90-60=30

30/100

30/100 is divided by 10 on each side to simplify it to 3/10

Help me pleaseeeee!!!

Help me pleaseeeee!!!

Answers

Answer:

Option C is the correct option

the answer would be C and B
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