Mathematics Middle School

Solve each equation. Remember to check for extraneous solutions!

1. 4/9 = x-7/x+1

2. 1/6r^2 + 2r-6/3r^2 = 1/3r^2

3. x^2-3x/x^2+4x+3 + 1/x+1 = 1/x+3

Answers

Answer 1

Answer:

1. 67/5

2. r=12/13, 0

3. x≈−3.46050487, −1.23912327, 0.69962814

Hope this helps!!!!

Related Questions

Help me please im dying becuase of this

Answers

Answer:

C

Step-by-step explanation:

HELP PLEASE THIS IS DUE TODAY AT 12: 00 AM WHOEVER GETS IT RIGHT WILL GET BRAINLIEST Mr. O’Connell spends 15% of his salary on food and 24% of it on transportation. He saves the remaining $1,830.

A. What is his salary? Do not use a comma in your answer.

Answers

100 - 39 = 61. $1830 x 100/61 = $3000

Step-by-step explanation:

use formula

is/of %/100

1830 is (15 + 24) 39 % of what? so 1830 × 100 = 183000 divide by 39% equals 4692.30.

to check your answer what is 39% of 4692.30

multiply both and it shall equal 1830

MN is translated up 2 units to form M'N'. Which statement is true?

Answers

Answer:

upper left

Step-by-step explanation:

Upper left hope this helps

Please help, I will give brainiest.
There are 6 sides on the number cube. There are two blue tiles, one green, and one red tile in the tile bag.
If you were to roll the number cube and draw a color tile from the bag 240 times, how many rolls of an even number and blue tile draws would you expect?

Answers

Answer:

40

Step-by-step explanation:

It should be 60

240/4=60 four different tiles
60*2=120 two tiles are red
120/2=60 half of the numbers on the cube are even

Choose the number sentence whose quotient is 2.5.

a 1.6➗6.4
b 2➗0.8
c 1➗4
D 0.64➗1.6

Answers

B.
2/0.8 is 2.5
I would download an app called Socratic is helps a lot!
The answer should be b

Which expressions are equivalent to 2(3/4x + 7) - 3 (1/2x - 5) Check all that apply.
1) -1

2) 29

3) 2(3/4x + 7) + (-3) [1/2x + (-5)]

4) 2(3/4x) / 2 (7) / 3(1/2x) / 3(-5)

5) 2(3/4x) / 2(7) / (-3)(1/2x) / (-3)(-5)

Please hurry, the assignments due soon! The "/" stand for division btw-

Answers

well the answer is 29

meaning 2 and 3 are the correct answers :)

Answer:

3

Step-by-step explanation:

Which equation is true?

A. 600 divided by 10 to the first power = 6.
B. 600 divided by 10 to the second power = 6.
C. 600 divided by 10 to the third power = 6.
D. 600 divided by 10 to the fourth power = 6.

Answers

Answer:

b) 600 divided by the second power is 6 :)

Please mark brainliest!

The expression 600 divided by 10 to the second power = 6 is true.

Option B is the correct answer.

We have,

A.

600 divided by 10 to the first power

This can be written as,

600 ÷ 10

600/10

60

B.

600 divided by 10 to the second power

600 ÷ 10²

600/10²

600/100

6

C.

600 divided by 10 to the third power

600 ÷ 10³

600/10³

600/1000

0.6

D.

600 divided by 10 to the fourth power

600 ÷ [tex]10^4[/tex]

600/10000

6/100

0.06

Thus,

600 divided by 10 to the second power = 6 is true.

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ6

Ben is 444 times as old as Ishaan. 666 years ago, Ben was 666 times as old as Ishaan.
How old is Ben now? i will give brainly to whoever answers it right!!!

Answers

Answer:It means Ishaan is 15 years old now

Step-by-step explanation:Ben is 4 times as old as Ishaan

and

6 years ago , Ben wad 6 times as old as Ishaan

Now

Let's assume that Ishaan is x years old now.

It means age of Ben = 4x

And 6 years ago , ben was 6 times as old as Ishaan

6 years ago , age of Ishaan = x-6

and age of ben = 4x-6

it means

4x-6 = 6(x-6)

4x-6 = 6x-36

add 6 to both sides

4x= 6x -30

Subtract 6x from both sides

-2x = -30

divide both sides by -2

x=15

Answer:

Ben is 60 Ishaan is 15

Step-by-step explanation:

did it

Dave made 5 kilograms of kettle corn. He divided it evenly into 20 bags. How many kilograms of kettle corn did he put in each bag?

Answers

Dave put 0.25 kilograms of kettle corn into each bag

Find the slope of the line that passes through (-24, 6) and (9, 87). Simplify your answer and write it as a proper fraction, improper fraction, or integer. ​

Answers

Answer: The equation of a straight line is:

y = mx + b

m is the slope, and that is -2.

Hope this helps:/

Ok so I see what your doing here. So your two numbers you need to make (-24,6) put 1 as x1 and x2 then (9,87) do the same thing but put y1 over and y2 over 87.


So you’d do 6-87 which gives you -81/30 Which could reduce down to -27/10 hope that helps



y=mx+b

The mass of Hinto's math book is 4,312 grams. What is the mass of 5 math books in kilograms? (Round your answer to the nearest thousandth.)​

Answers

Answer: 21560 grams

ROUNDED IT WOULD BE

22000 grams

Step-by-step explanation:

4312 x 5 = 21560

The answers 22000 rounded to the neArest thousand

Help me please! This is due at 12!

Answers

Answer: the answer is option D

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Earth has 24 time zones spread over its 360º circumference. Each time zone is 15º wide. Boston is close to longitude 71º W; Honolulu is close to longitude 158º W.

How many time zones apart are Boston and Honolulu?
A. They are 6 time zones apart because ≈ 6.
B. They are 5 time zones apart because ≈ 5.
C. They are 4 time zones apart because ≈ 4.
D. They are 2 time zones apart because ≈ 2.

Answers

C is the answer.. hope this helps

Answer:

it is A my guy sorry im late but im answering for the people in the future

Step-by-step explanation:

Hurry and this is my last one I promise !!!

Answers

50 is the answer..............

Answer:

it is 50

Step-by-step explanation:

done the math

????????????????????????????????????

Answers

x = 13

13 x 8 = 104
2(13) + 14 = 40
104 + 40 + 36 = 180

A wheel with a diameter of 21 inches is rolling on a farm. After 100 revolutions, approximately how many inches has the wheel traveled? Use 22/7 for pi

Answers

Answer:69420

Step-by-step explanation:

if you go 21 inches down a 100 inch slope you will be 79 inches

It’s 69420...........................

-13 = r + 8
9
what does r equal?

Answers

Answer:

9=r/8

Step-by-step explanation:

I hope that helps if not delete this answer sorry

r = -102

Explain: subtract 89 from -13

Given the system of equations One-third x minus two-thirds y = 7 and two-thirds x + 3 y = 11, which numbers can be multiplied by the equations to eliminate the x-variable? Check all that apply.
–6 times the first and 3 times the second
6 times the first and –3 times the second
–3 times the first and 6 times the second
3 times the first and –6 times the second
2 times the first and –1 times the second

Answers

Answer:

The answer is A B&E

Step-by-step explanation:

hope it helps

Answer:

AB and E

Step-by-step explanation:

A recipe for crumb cake says to mix 38 cup of brown sugar and 13 cup of white sugar.
From this sugar mixture, set aside 14 cup for the crumb topping.
The remaining sugar mixture is used to make the cake.
What amount of the sugar mixture is used to make the cake?
A. 17/24 cup
B. 1/2 cup
C. 11/24 cup
D. 7/12 cup

Answers

A is the correct answer

Answer:

the answer is c

Step-by-step explanation:

Please please help me please help

Answers

A. 1 1/2
B. 3 5/7
C. 15 1/2
D. 6
E. 2/11
a: 1 1/2
b: 3 5/7
c: 15 1/2
d: 6
e: 2/11

can you help me pleeeeaaaase

Answers

b < -3/7

Explanation: subtract 5/7 from 2/7 which you’ll get -3/7.
Since a variable has to be in from switch sign so b is on the left.
Hope this helped
the correct answer is b

HURRY WILL MARK BRAINLIEST .Diana is training for a marathon. The total miles she runs varies from week to week but follows the pattern described in the table. Diana wants to run at least 60 miles next week. What are the possible distances she can run on​ Monday? Describe and graph the reasonable solutions.

LOADING... Click the icon to view the training schedule. Picture included below. Also fill I. The blanks pictures of blanks included

Answers

Answer:

she could run 6 on mounday

Step-by-step explanation:

The sum of the measures of three adjacent angles is 150°.The measures of the angles are in the ratio of 1 : 2 : 3. What is the measure in degrees of the largest angle?

Answers

Answer:

3=75 degrees

Step-by-step explanation:

1+2+3=6

1*150/6=25degrees

2*150/6=50 degrees

3*150/6=75 degrees

You pay 15 dollars for something that was 25% off. What was the original price of the hat before the discount?

Answers

Answer:$18.75

Step-by-step explanation: 15*0.25=3.75

15+3.75=18.75

Answer:

20

Step-by-step explanation:

So we first subtract 25% from 100% so we can see what percent 15 is:

100 - 25 = 75 so 15 is 75% of ___:

This gives us a standard percentage problem, so:

75% = 0.75

we can rewrite the equation as a one-step equation:

15 = 0.75a

Dividing both sides by 0.75 and swapping sides gives

a = 15 ÷ 0.75 = 20

So the original price of the hat was $20

OR

because 25% is 1/4, and 75% is 3/4 and 15 is therefore 3/4:

15 ÷ 3 = 5

5 x 4 = 20

what is the answer to 2[10]+[x-4].

Answers

Answer:

[tex]2(10) + (x - 4) = 0 \\ 20 + x - 4 = 0 \\ x = 4 - 20 \\ x = - 16 \\ to \: check \: out \: \\ 2(10) + ( - 16 - 4) = 0 \\ 20 - 20 = 0 \\ then \: \: \: x = - 16[/tex]

Answer:

16+x

Step-by-step explanation:

According to the box-and-whisker plot shown below, what are the following:

1) The median?

2) The 1st quartile?

3) The 3rd quartile?

4) The minimum value?

5)The maximum value?

Answers

1. 40
2. 10
3. 20
4. 10
5. 90

The median is 40 and the maximum value is 90.

What is a box-and-whisker plot?

A box and whisker plot is a special type of graph that is used to show groups of number data and how they are spread. It shows the median, which is the middle value of the numbers in your data, the lowest number, the highest number and the quartiles, which divides the data into four equal groups.

Here, from the given box-and-whisker plot

1. The median is 40

2. The first quartile is 10

3. The third quartile is 20

4. The minimum value is 10

5. The maximum value is 90

Therefore, the median is 40 and the maximum value is 90.

Learn more about the box-and-whisker plot here:

https://brainly.com/question/11859288.

#SPJ2

Can somebody please help me with this please

Answers

Answer:

C. The axis is flipped at that point.

the answer should be C



sorry if it’s wrong

Lynne loaned $480 to a friend. The friend paid back the amount borrowed plus 10% interest. What was the total amount the friend paid to Lynne?

Answers

Answer: $528

Step-by-step explanation:

10% of 480 is 48 so you add that to 480 because she payed the loan plus 10% of it. 480+48=528

The total amount is $528

1.) k + 4n k = 3 and n = 7 *
5 points
2.) 3f - 6 - 4r when f = 7 and r =-5 *
5 points
3.) 9z + 8h + 2 when z = 3 and h = 7 *
5 points
4.) 3k + 4s when k = 6 and s = -2 *
5 points
5.) 5 + 7c + 9d when c = 3 and d = -3 *
5 points

Answers

1.) 31
2.) 35
3.)85
4.) 10
5.)-1
1. 31
2. -5
3. 85
4. 10
5. -1

Ok so I only need help with the table and I need you to help me with the 2.50 one if you do this for points I report

Answers

Answer:

what table

Step-by-step explanation:

and how can you tell if some one is trying to help if you don't give them a chance ?

Other Questions
What is the correct definition of oligarchy?A. rule by a small groupB. rule by the peopleC. rule by religious authoritiesD. rule by a king A layer of water x m thick which lies x m above the bottom of the tank will be rectangular with length 8 m. Using similar triangles, we can see that it will have widt of_____m How did John Brown's raid at Harper's Ferry further increase sectionalism in the southern states? which business function is not present in case of a certain type of business?Due to the nature of its work the (production, finance, human resources) function does not exist in case of a (oil refinery, supermarket, construction company) PLZ HELP I WILL GIVE BRAINLISTS TO RIGHT ANSWER2KCIO3 2KCI+ 302How many moles of oxygen are produced by the decomposition of 5.0 moles of potassium chlorate?A )7.5 mol O2B )5.0 mol O2C )2.5 mol O2D )9.0 mol O2 Which of the following is the term for malignancy of the retina in early childhood and usually requires removal of the eye? PLEASSE HELP EQUATION IN PICTURE What are CDs in economics? A parachutist's speed during a free fall reaches 135 miles per hour. What is this speed in feet per second? At this speed, how many feet will the parachutist fall during 5 seconds of free fall? In your computations, use the fact that I mile is equal to 5280 feet. Do not round your answers. What is the Lithuanian castle used for can someone please describe a personal struggle u have? Okay im spamming but help me again please The amount of force your muscles can produce lifting weights: Heavy weight/low reps. 1. Multinational corporations Why do companies go global? Multinational corporations operate in locations across the world. Each company has its own motive for its presence in different countries. Consider the following case: RTE Telecom Inc. is an American company that produces high-tech electronics. Its managers have decided to move some of its production facilities to Japan in an attempt to circumvent certain governmental regulations. Which of the following best describes the reason RTE Telecom Inc. has decided to go global? To avoid political, trade, and regulatory hurdles To seek production efficiency To broaden its markets Now consider the case of Blue Moose Producers. To conceal its trade secrets, Blue Moose Producers has decided to invest abroad instead of licensing to local foreign firms. Blue Moose Producers has decided to go global in order to . Companies go global for various reasons. Although becoming a multinational corporation provides prospects for high returns and diversification, it makes financial management more complicated for financial executives and managers. Based on your understanding of the factors that complicate financial management in multinational firms, complete the following statement: Compared to domestic corporations, multinational corporations have exposure to risks that arise from complex tax laws and multiple money markets. A standard penetration test has been conducted on a coarse sand at a depth of 16 ft below the ground surface. The blow counts obtained in the field were as follows: 0-6 in. 4 blows; 6-12 in.: 6 blows; 12-18 in.: 6 blows. The tests were conducted using a USA-style donut hammer in a 6-in diameter boring using a standard sampler with the liner installed. The vertical effective stress at the test depth was 1500 lb/ft^2. Determine N1.60. why you consider it is important to quantify matter. Please provide 3 examplesof materials you may quantify what is the electron configuration for Na? what is (16, -6) dilated with a scale factor of 1.5 Iago then says, Come on, come on. You are pictures out of door, bells in your parlors, wild-cats in your kitchens, saints in your injuries, devils being offended, players in your housewifery, and housewives in your beds. How is Iagos language dehumanizing about women? Darrell earns $75 per week walking dogs and cutting grass. He carns $10 more cutting grass than walking dogs. How much does Darrellearn cutting grass?