Mathematics Middle School

Please help me i don't get these!!!!

Answers

Answer 1

Answer:

the first one is d

Step-by-step explanation:

Answer 2

Answer:

1. D) D'(-4,0)

2. B) 11

Step-by-step explanation:

2. 5x+1+12x-8=180

17x-7=180

17x=187

x=11

Related Questions

PLZ HELP ME IM VERY CONFUSED! BRAINLIEST TO THE FISRT PERSON WITH WORK! AND 50 POINTS! AND ONLY ANSWER IF YOU HAVE AN ANSWER!!!!!!!!!!

The Hamptons Family has a fish tank holding 10,450 ml of water. The water is leaking at a rate of 270 ml per minute.

Part A: Define the input and output in the given scenario.

Part B: Write a function to model this situation.

Part C: How many liters of water will be left in the tank after 10 minutes
(hint: liters, not milliliters)

Answers

Answer:

The output would depend on the input so relating this to the question, the input is the time (in minute) and the output is the amount of water left in the tank

We can give a letter 't' for the time, the input, and f(t) for the output

----------------------------------------------------------------------------------------------------------------

The original amount of water in the tank is 10450, so this will be the fixed constant.

The amount of water lost per minute is 270 so this will be the term that varies depends on the variable of time, we write this as 270t

The function is given f(t) = 10450 - 270t

--------------------------------------------------------------------------------------------------------------

Given, t = 10

f(10) = 10450 - 270(10)

f(10) = 7750 ml

Step-by-step explanation:

Answer:

Part A:

Since the rate of 270 ml per minute has units of ml per minute, then yy must have units of ml and x must have units of minutes. The input must then be the number of minutes the tank is leaking for and the output is the number of ml of water remaining in the tank.

Part B:

Since the tank is leaking 270 ml per minute, then after x minutes, 270x ml of water has leaked out of the tank. The tank initially has 10,450 ml of water so after x minutes, there is y=10,450−270x ml remaining in the tank.

Part C:

After x=10 minutes, the amount of water remaining in the tank is y=10,450−270(10)=10,450−2,700=7,750 ml. There are 1,000 ml in 1 liter so 7,750 ml = 7.75 liters. There are then 7.75 liters of water left in the tank after 10 minutes.

If there are 24 boys and 36 girls in a room, fill out all of the possible ratios of boys to
girls that could be made.
There are 24 boys for every 36 girls (24:36 ratio)
There are boys for every girls try
Type in an equivalent ratio of boys and girls

Answers

4:6 is one ratio, 2:3 is another ratio

Answer:

4:6

Step-by-step explanation:

Divide both #s by 2, 4, 6, or 8 and you'll get an equivalent ratio

(I divided by 6)

Plz make me brailiest :))))

First 5 multiples of 6: 6, 12, 18, 24, 30
First 5 multiples of 9: 9, 18, 27, 36, 45
What is the least common multiple (LCM) of 6 and 9?
A. 54
B. 18
C. 27
D. 9

Answers

Answer:

Step-by-step explanation:

theyy both go into 18

The least common multiple (LCM) of 6 and 9 is 18. so, the correct answer is B. 18.

To find the least common multiple (LCM) of 6 and 9, we can list their multiples and look for the smallest common multiple.

The first 5 multiples of 6 are

6, 12, 18, 24, 30.

The first 5 multiples of 9 are

9, 18, 27, 36, 45.

From these lists, we can see that the smallest common multiple of 6 and 9 is 18.

Therefore, the correct answer is B. 18.

Learn more about LCM here;

https://brainly.com/question/13066728

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If I mix 2 cans of yellow paint for every 3 cans of blue paint, how much yellow paint is needed with 6 cans of blue paint? (Draw a picture to help)
Group of answer choices

4

6

5

3

Answers

Answer:

Step-by-step explanation:

4 cans. These are ratios. One way u can do these like a problems like these, is 6 blues cans divided by 3 blue cans = 2 blue cans. Then multiply 2•2=4 cans

The double number line below shows the prices for a certain number of packs of spaghetti at a store. Which statement correctly gives and explains the price of 9 spaghetti packs?

A. $18, because the price of each pack is $2
B. $72, because the price of each pack is $8
C. $80, because the price of each pack is $8
D. $144, because the price of each pack is $16

Answers

Answer: Option B. $72, because the price of each pack is $8

plzzz mark as brainliest

the answer is c
if you do 16/2 it equals 8 which means each pack cost $8 and then you multiply 8 by 9
(sorry if that’s wrong)

What is the slope and y-intercept for the following equation 5y-2x=15

Answers

Answer: y=3+2/5x

Step-by-step explanation:

The slope is 2/5 and y intercept is (0,3)

could anyone give a simple answer? sorry if im asking so many questions, im just confused. Which table of ordered pairs represents a proportional relationship? A 2-column table with 3 rows. Column 1 is labeled x with entries negative 3, negative 4, negative 5. Column 2 is labeled y with entries 3, 2, 1. A 2-column table with 3 rows. Column 1 is labeled x with entries negative 1, negative 3, negative 5. Column 2 is labeled y with entries 1, 3, 5. A 2-column table with 3 rows. Column 1 is labeled x with entries negative 2, negative 4, negative 6. Column 2 is labeled y with entries negative 5, negative 7, negative 9. A 2-column table with 3 rows. Column 1 is labeled x with entries negative 2, negative 3, negative 4. Column 2 is labeled y with entries 0, negative 1, negative 2.

Answers

Answer:

A 2-column table with 3 rows. Column 1 is labeled x with entries 14, 28, 42. Column 2 is labeled y with entries 2, 4, 6.

Step-by-step explanation:

A 2-column table with 3 rows. Column 1 is labeled x with entries 16, 32, 48. Column 2 is labeled y with entries 1, 2, 4.

No, as x= 4 ⇒ y =64 not 48

A 2-column table with 3 rows. Column 1 is labeled x with entries 1, 5, 6. Column 2 is labeled y with entries 5, 20, 30.

No, as x = 5 ⇒ y = 25 not 20

A 2-column table with 3 rows. Column 1 is labeled x with entries 14, 28, 42. Column 2 is labeled y with entries 2, 4, 6.

Yes, as 2*7 = 14, 4*7= 28, 6*7= 42

A 2-column table with 3 rows. Column 1 is labeled x with entries 0, 1, 3. Column 2 is labeled y with entries 25, 70, 90.

No, x = 3 ⇒ y= 25+3*45= 160 not 90

I have no clue...lol

Can anyone help me?
I'll put all the questions here.

1) Describe the pattern that is being followed: 1, 5, 10, 16 . . .
What are the next two numbers in the sequence?

2) Describe the pattern that is being followed: 1, 3, 7, 15 . . .
What are the next two numbers in the sequence?

3) Describe the pattern that is being followed: 1, 2, 3, 5, 8 . . .
What are the next two numbers in the sequence?

Will mark brainly if you get all of them!!

Answers

It’s moves 1 up every time

Answer:

Step-by-step explanation:

1) 1 +4=5

5+(4+1) = 10

10 +(4+2)= 16......

2) 0+1 = 1

1+2 = 3

3+4 = 7

7+8= 15

ADD THE NEXT NUMBER 15+16 = 31

3) 0+1 = 1

1+1=2

2+1= 3

3+2 = 5

5+3= 8 8+5=13.........

HELP PLEASE WITH THIS MATH PLS

Answers

4(-2/3) = -2.666666666667

You should simplify this equation into 4 x ((-2)/ 3).

Answer:

-2.666666666667

simplify this equation into 4 x ((-2)/ 3).

A school purchases calculators from a store for six dollars each. Create an equation that represents the total cost, use d for dollars, and c for the number of calculators purchased.

Answers

Answer:

d = c (6)

Step-by-step explanation:

please help me please

Answers

Answer:

Step-by-step explanation:

12345678901234567890

Answer:

Step-by-step explanation:

9*420=3780

hope this helps :3

5 times 5 another easy one

Answers

Answer:

Step-by-step explanation:

25 is another easy one

the cost of building an airplane with 200 seats is about 100$ million if the cost in million of dollars c is proportional to the number of seats what equation can be used to determine the cost , in millions of dollars to bulid an airplane with any number of seats?

Answers

Answer:

i dont remeber the exact answer but with the millions get rid of the 0s to add easier

Step-by-step explanation:

100 seats will be needed n the aircraft.

I need it done assapppp

Answers

In order to find the solution, You would first line line the equation up. then, you would subtract -200 by 15. The answer would be -185. I know the answer will be negative because -200 is too big for 15 to make the solution positive. If you had a positive 201 plus -200 the answer would be equivalent to a positive one because the positive would cancel out the negative.

Included: Negative, positive, equivalent.

explanation/ statement:

"I think I should subtract -200 by 15. which one equal -185. I know the answer will be negative because -200 is too big for 15 to make the solution positive.

In fact, If you had a positive 201 plus -200 the answer would be equivalent to a positive one because the positive would cancel out the negative one.

Hi! I really hope this helps and have a great day/night from you are!

What are the like terms in the expression below?
3x + 8 + 3y + 8x

A 8 and 8x C 3x and 8x

B 3x and 3y D 3x, 3y, and 8

Answers

Correct answer:

C) 3x and 8x

Step-by-step explanation:

At first I thought the correct answer was D.

You may Have thought that too but that is not the correct answer.

You see 3x and 8x are both like terms because they both have x

but..

The other 3 does not have a x it has a y

I hope this helps

Let me know

00:00

Mia agrees to borrow a 3-year loan with 4% simple interest to buy a motorcycle.

Part A
If Mia will pay a total of $444 in interest, how much money did she initially borrow? Enter your answer in the box.

$

00:00

Part B
How much interest would Mia pay if the simple interest rate were 5%? Enter your answer in the box.

$

Answers

Answer:

Part A: She borrowed: 3700

Part B: She would pay 555 in interest.

Step-by-step explanation:

Since, simple interest is,

Where, P is the principal amount,

r is the annual rate of interest,

t is time ( in years ),

Part A : Here, S.I. = $ 444,

t = 3 years,

r = 4 %,

Thus,

Hence, She borrowed $ 3700.

Part B :

Here, r = 5 %, t = 3 years, P = $ 3,700,

Hence, She would pay $ 555 interest.

HELP PLEASE!!!!!!
Create a situation that could be modeled by the equation f(x) = 2x + 7.

Answers

A situation: A babysitter charges 7 dollars for every kid. She additionally charges 2 for every hour she babysits. How much would she make if she babysat x number of kids?

PLEASE help haha. Please add an explination as well!

Answers

Answer:

2R10

Step-by-step explanation:

2*40 equals 80 but you need to get to 90 so you have 10 remaining.

2R10
2*40 is equal to 80

Can someone explain the process to answer this?

Graph the line that represents the equation 3y = 2x + 9

Will Give Brainliest!

Answers

Answer:

I suggest using Desmos and copying off there

Step-by-step explanation:

The answer would be y=2/3x+3 because you have to get it into slope intercept form by dividing 3 on both sides.
The y intercept would be (0,3) then the slope would be 2/3x so you move up 2 then to the right 3

3. Which of the following has the same value of as -10 + -3? Write you
A. -10-3
B. -10 - (-3)
C. -3 + 10
D. -3 + (-10)

I’ll give 20 points!

Answers

Answer:

A and D

Step-by-step explanation:

Hope this helps :)

Magdeline wants to know if the number of words on a page in her art book is generally more than the number of words on a page in her science book. She takes a random sample of 25 pages in each book and then calculates the mean, median, and mean absolute deviation for the 25 samples of each book.

Book Mean Median Mean Absolute Deviation
Art 68.7 50 15.4
Science 54.2 55 7.9

She claims that because the mean number of words on each page in the art book is greater than the mean number of words on each page in the science book, the art book has more words per page. Based on the data, is this a valid inference? (10 points)
Group of answer choices

Yes, because the mean is larger in the art book

No, because the mean is larger in the art book

Yes, because there is a lot of variability in the art book data

No, because there is a lot of variability in the art book data

Answers

Answer:

No, because the mean is larger in the art book

Step-by-step explanation:

give me brainliest plz because i answered

Find the length of the unknown side. Round your answer to the nearest whole number.

Group of answer choices

7 meters

9 meters

10 meters

12 meters

Answers

the answer is 72.8. in order to solve this problem, you need to use the pythagorean theorem. the equation is c^2-b^2=a^2.

75^2-18^2=a^2

75 squared minutes 18 squared is 5301. then you need to find the square root of 5301.

the square root of 5301 is 72.8079666, rounding to 72.8.

The answer is 72.8 and you are welcome have a great day

Shannon scored 36 points on 6 questions on her test. What is the unit rate for one question?

Answers

Answer:

Step-by-step explanation:

6 is the answer for this proquestion

Cell phone cases cost $12 each. Write an equation to find y, the total cost of x number of cases.

Answers

Answer:

y=12x

Step-by-step explanation

Let's assign meaning to the variables

y= the total cost

x=the number of cases purchased

Since y is the total it is going to be our ending value so y=12x

Hope this helps!

y = 12x (that’s it!!)

ANSWER MY LAST QUESTION FAST!!!

Answers

Answer:

why :)

Step-by-step explanation:

Have a good day smile big dont let anyone hurt u ur beautiful :)

Answer:

Step-by-step explanation:

where is your last question?

What is 7234433443433456 × 45678456783456789 = ? What is the answer to this.

Answers

Answer:

the answer is 3.3045776e+32

Step-by-step explanation:

this equation dosent really make sense..

3.3045776e+32
Google says it

I will share to explain how to convert 22 inches to feet. (how can you do it, what is important about setting up proportions, what sheet can we use to help is with conversions)

Answers

12 inches is in 1 foot.

1 foot and 10 inches?

Which of the following is 7/18 closest to?
1/2
0
1

Answers

1/2 I think is the answer

Answer:

1/2

Step-by-step explanation:

Which ordered pairs in the form (x, y) are solutions to the equation

7x−5y=28?

Select each correct answer.

A. (4, 10)

B. (−1, −7)

C. (7, 9)

D. (−6, −14)

When I tried to solve for 5y I got 5.6

Answers

It’s B plug in -1 to x and -7 into y

Options B. (−1, −7) and D. (−6, −14) are correct which are the solutions to the equation.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that:

The equation is:

7x - 5y = 28

From the above equation:

y = mx + c

On comparing:

y = (7/5)x - 28/5

m = 7/5

c = -28/5

After plotting the graph of the equation:

From the graph:

B. (−1, −7)

D. (−6, −14) are the ordered pairs in the form (x, y) that are solutions to the equation.

Thus, options B. (−1, −7) and D. (−6, −14) are correct which are the solutions to the equation.

Learn more about the linear equation here:

brainly.com/question/11897796

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Howard can mow 3 lawns in 6 hours. How many lawns can he mow in 24 hours?
Group of answer choices

12

21

6

3

Answers

Answer:

12 lawns in 24 hours

Step-by-step explanation:

I hope that this helps. Have a good day!

12 is the answer !!!!!!!!!!!!!!!!!!!!!!!!

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