Mathematics Middle School

The difference of x and y is 14. The value of x is 3 more than twice the value of y. Write two equations and graph to find the value of x.

Answers

Answer 1

Answer:

system of equations

Step-by-step explanation:

x-y=14

x = 2y+3

x - y = 14

x -2y = 3

x - y = 14

-x + 2y = -3

y = 11

x = 25

Related Questions

5. Which would be a good first step to use to solve this system?



1st equation: y = 6x + 4

2nd equation: 5x + 2y = 12



A. Multiply the first equation by 2, and add the result to the second equation.

B. Substitute 5x + 12 for for y in first equation.

C. Substitute 6x + 4 for x in the second equation.

D. Substitute 6x + 4 for y in the second equation.

Answers

Answer:

d. substitute 6x +4 for y in the second equation

Please help! How do you solve?

Answers

1 is 50 because you have to make sure it adds up to 180. That angle is 130 so 1= 50

A lemur weighs 4.2 kilograms. How many grams does the lemur weigh? Use the number of zeros of the product when multiplying a number by a power of 10 to help you.

42 grams
42,000 grams
420 grams
4,200 grams

Answers

4.2 kilograms to grams is 4,200

Answer:

Hi i am in 1 grade but i hope it helps

Step-by-step explanation:

I think it is 4,200

Which of the following angles can be added together to create 177°? Explain your answer using words.

Answers

First you’d look for ones units that add up to 7, so in this case (5)4 and (6)3

Add 54 and 63 to get 117

Subtract 117 from 177 to get 60

25 and 35 equal 60 (I just know that from common knowledge I have no idea how to explain that in words)

So 25 + 35 + 54 + 63 = 177

PLEASE HELPPPP!!!!!!

Answers

The correct answer is A no explanation needed it’s just A
It’s A those are the only outcomes it could possibly be.

12 gallons of water are used to completely fill 5 fish tanks. If each tank holds the same amount of water, how many gallons will each tank hold?

Express your answer as a mixed number.

Answers

Answer:

2.4 gallons/tank

Step-by-step explanation:

12/5=2.4 gallons

I think is 2 4/10 or 2 2/5 hope this helps

i need help, this is over due and i need to get it done and I have no ide what I'm doing

Answers

Answer:

I have the answers, we did this homework.

The first question is B. The second question is D. The third question is C. And the fourth question is D. Hope this helped.

Please help I will reward brainliest

Answers

Answer:

Step-by-step explanation:

Supplementary means 2 angles adding up to 180 or the line of AEF in this case

so supplementary pairs like DEH and HEF would add up to 180, same with DEJ and JEF

Answer:

Angle DEH and angle HEJ and HEK and KEF add up to 180 degrees

Step-by-step explanation:

Two angles are called complementary if their measures add to 90 degrees, and called supplementary if their measures add to 180 degrees. ... For example, a 50-degree angle and a 40-degree angle are complementary; a 60-degree angle and a 120-degree angle are supplementary.

Hope this helped! Have a nice day! Plz mark as brainliest!!!

-XxDeathshotxX

Help me answer image sent. (I zoomed the graph so you can see it better.)

Answers

Answer:

1. K

2. F

3. B

4. E

5. H

6. J

Answer:

1=E

2=F

3=B

4=G

5=H

6=J

Step-by-step explanation:

JUST TRYING TO HELP HAV A GUD DAY

what is the answer 8s + 8 + 3st + 4s

Answers

Answer:

12s + 8 + 3st

Step-by-step explanation:

Combine like terms:

8s + 4s = 12s

8

3sr

What is the area of a circle with a radius of 20 inches?

10π square inches
100π square inches
40π square inches
400π square inches

Answers

400pi square inches

Step-by-step explanation:

20×20×3.14= I got 1256 inches ²

here is 1-12 of the assignment

Answers

1. 5m-6 m=7
5(7)-6
35-6
Answer: 29

2. 4m+t (t=2) (m=7)
4(7)+2
28+2
Answer: 30

3. r/t (r=8) (6=2)
8/2
Answer: 4

4. m*t (m=7) (t=2)
7*2
Answer: 14

5. 5t+2m
5(2)+2(7)
10+2(7)
10+14
Answer: 24

6. r*m
8*7
Answer: 56

7. 3m-5t
3(7)-5(2)
21-10
Answer: 11

8. m*r/t
7(8)/2
56/2
Answer: 28

10. n+16
The sum of a number n and 16.
11. 3.2n
The product of 3.2 and a number n.
12. 25.6-n

I know I already send this all to you, but if anyone else needs help here’s the answers.
Just read this guys ^
|

Is 1 1/2 closer to 1 or 2?

Answers

Answer: 2

Step-by-step explanation: Since 11/2 is bigger than 1 whole it should be 2 or more. since 2 can go into 11 5.5 times.

If you look at it as a decimal it would be 1.5

If you round it you would round it to 2

Help!! check screenshot below.

Answers

Answer:

x < 7

Step-by-step explanation:

7x < 49 (Given)

x < 7 (Divided 7 on both sides)

Answer:

Answer. x < 7

Step-by-step explanation:

hope this helps :>

Louis wants to carpet the rectangular floor of his basement. The basement has an area of 507 square feet. The width of the basement is 1/3 its length.

What is the length of Louis's basement?

plz help i stayed all night thinking about this but still it doesn't click in my brain

Answers

Divide 507 square feet by the width of the basement
507 ÷
1
3
=
1521
Calculation steps:

507 ÷
1
3
= 507 ÷
1
3
=
507
1
×
3
1
=
507 × 3
1 × 1
= 1521

Write an equivalent expression for (1.5 + k) +2.25

Answers

Answer:

k+3.75

Step-by-step explanation:

The equation can be simplified to k+3.75:

k+1.5+2.25

k+3.75

Help me PLEASEEEEEEEEEEEE :C

Answers

Answer:

A. 525 in squared

Step-by-step explanation:

Fundamentally, the area of a parellelogram such as this can be calculated the same way the area of a normal rectangle is calculated: Length x Width.

Thus,

(27 + 8) x 15 = Area

35 x 15 = Area

525 = Area

Don't forget your units! (Inches squared)

Answer: The answer is 525

0.5% of what number is 5

Answers

Answer:

1,000

Step-by-step explanation:

5/10ths of a percent of what number is 5-which would be 1000

Answer:1000...I think

Step-by-step explanation: 0.5 can go into 100, 200 times 5 times 200=1000

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

A circle with radius labeled 23 yards

Find the area for the circle (use 3.14 for pi). Show your work. Round to the nearest tenth.

I'LL REWARD BRAINLIEST

Answers

Answer:

55

Step-by-step explanation:

culo

Answer:jsoemsm

Step-by-step explanation:

Zach's trunk has a volume of 12 cm3.

How many 1 cm3 cubes will fit in it?
pls tell me how you got ur answer ;-;

Answers

Answer:

5^3

Step-by-step explanation:

This section introduces the idea of volume by counting up how many 1 cm cubes there are in a solid. We want to find the volume of this solid: We can see that this solid is made up of five 1 cm cubes like the one above. The volume of the solid is 5 cm³

12 because we know that it’s volume is 12 and volume is how many of whatever item fit in it

Which comparison is not correct?
-8 < |-4|
|-2| < |-9|
|-7| > -9 |
8| > |-9|

Answers

Answer:

the 2 one is wrong

Step-by-step explanation:

the 2 would be greater than the 9 sense both the numbers are negative and the bigger the negative number is the less amount it is so -9 is smaller than -2

anyone please help me

Answers

Mark reads about 350 (D) wpm
Explanation:
700 words x 10 pages= 7000 words
7000 words/ 20 minutes
= 350 wpm
The answer I got was 350 because 700 x 10=7000 and if you divide 7000/20 you get 350

Find the measure of ∠YOZ by answering the questions.

1. Find the measure of ∠WOV. Which angle relationship did you use?
2. Now find the measure of ∠YOZ. Which angle relationship did you use?
3. Check your answer by using another strategy to find the measure of ∠YOZ. Describe your strategy, and show that it gives the same measure for ∠YOZ.

Answers

Answer:

3

Step-by-step explanation:

The answer is the 3rd one

:> I need hep with this math thingyyyyyyyyyyyy

Answers

A. 65 degrees F
Explanation:
to find the mean, add all numbers in the data set and divide the sum by how many numbers there are. using this formula, you get 65.

Answer:

65 is the answer

Step-by-step explanation:

17+39+29+81+87+99+103=455= A). 65

I hope this helps.

Find the area of the shaded region. Use 3.14 for π. Round to the nearest tenth if necessary. Whats the label?

Answers

Answer:

460

Step-by-step explanation:

yeg

Answer:

Step-by-step explanation:

3.14(10²) - 3.14(6²)

3.14(10² - 6²)

3.14(100 - 36)

3.14(64)

200.96

201

i think

Answer the following questions.

Answers

Answer:

Where is the question to answer on the picture?

Answer:

1. $50,000

2. $75,000

3. $100,000

4. $125,000

sorry this is all I have

Determine which of the following are the solutions to the equation below. x2=13

A. +/13


B.+/26


C.26


D.13

Answers

Answer:

I think its A. +/13

Step-by-step explanation:

I hope this can help!

It’s A or C ! Hope it helped :)

Mark hits a tennis ball into the air. He uses the equation shown to approximate the
height, h, in feet, of the ball t seconds after he hits it.
h = -1612 + 88t + 4
What does the 4 represent in Mark's equation?
A.
The ball was in the air for a total of 4 seconds.
B.
The ball landed 4 feet away from where Mark hit it.
C.
The ball was 4 feet above the ground when Mark hit it.
D.
The ball reached its maximum height 4 seconds after Mark hit it.

Answers

It’s D
Trust me it the right answer
i thinks it’s B i’m not really sure i’m slow i know it’s not D because t represents the seconds and in the equation it already has t

Me not being a complete id.iot-

Answers

Answer:

im pretty sure the answer is d

Step-by-step explanation:

The box plots below show the average gas mileage, in miles per gallon, of the cars sold at a dealership in June and in December.

Gas Mileage of Cars Sold in June
2 box plots. The number line goes from 14 to 34. For cars sold in June, the whiskers range from 21 to 33, and the box ranges from 22 to 29. A line divides the box at 24. For Cars sold in December, the whiskers range from 14 to 26, and the box ranges from 18 to 21. A line divides the box at 19.
Gas Mileage of Cars Sold in December

The manager used the table below to compare the measures of center and the measures of variability.


Median
Range
Interquartile Range
Sold in June
24
33 minus 21 = 12
29 minus 22 = 7
Sold in December
19
26 minus 14 = 12
21 minus 16 = 5

What error did the manager make in the table?

Answers

Answer:

The interquartile range for December should be 21 minus 18 = 3.

Step-by-step explanation:

Hope this helps!

The error which the manager made in the table is that: the interquartile range for December should be 21 minus 18 = 3.

What is a boxplot?

A boxplot is a type of chart that can be used for the graphical representation of a data while showing the five-number summary of a data set with respect to locality, skewness, and spread.

Thus, the five-number summary in a boxplot include the following:

MinimumFirst quartileMedianThird quartileMaximum

Based on the data provided in the table, we can infer and logically deduce that the error which the manager made in the table is that, the interquartile range for December should be 21 - 18 = 3 i.e 21 minus 18 equals to 3.

Read more on boxplots here: https://brainly.com/question/14277132

#SPJ2

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