Mathematics Middle School

I struggled with these as u can see, but pls answer all 3 questions and show how you set all the problems up (ill be giving brainliest)

I Struggled With These As U Can See, But Pls Answer All 3 Questions And Show How You Set All The Problems

Answers

Answer 1

Answer:

1+1-2 its 2

Step-by-step explanation:

Answer 2
4 because you need to know it’s 345

Related Questions


Finn has 7 bags of marbles. Each bag has 3 marbles.
Show one way to break apart the 7 to multiply.
Then find the total number of marbles.

Answers

Answer:

I think it's 21

Step-by-step explanation:

I'm not surebut I hope this helps.

The total number of marbles will be 21. Because 7 times 3 is 21

Of the students in your class, 12% are left-handed. What fraction of the students are left-handed? Are there more right-handed or left-handed students? Explain. Write your answers in simplest form.

what is the fraction for the right handed people

Answers

Answer:

Step-by-step explanation:

12% is equivalent to 12/100.  This reduces to 3/25.  Thus, 3/25ths of the students are left-handed.  The corresponding fraction for the right handed people is (25-3)/25, or 22/25ths.  There are more right-handed people (22/25ths) versus left-handed people.

Yes the answer above is right. 12% of the class is left but in fraction form it is 12/100 because a whole percent is 100% so 12 out of 100 is 12% :) hope it helped

alguien me da 5 fracciones inventados porfavor

por ejemplo 5/3 o algo si
si puedes y me ayudaria mucho es que si pueden darme la respuesta
pls tengo 11
:(

Answers

Answer:

Hola, he descubierto con qué querías ayuda! ¡Aquí hay 5 fracciones inventadas! 1/5, 1/4, 6/40, 7/8 y 21/30. ¡Espero que esto ayude! ¡Tener una gran noche! ¿Necesitas más ayuda?

Step-by-step explanation:

Select all of the algebraic expressions that could represent the phrase below.

Answers

Step-by-step explanation:

9 more = + 9

the product of 5 times t = 5t

so, the answer options 1, 2 and 4 are correct

is walking at a constant speed of 2.5 miles per hour. How far can she walk in 8 ​hours? Complete the table and plot the points to solve.

Answers

Answer:

she can walk 20 miles in 8 hours if she walks st a constant speed of 2.5 miles per hour

Answer:

20 miles

Step-by-step explanation:

all you do is multiply 2.5 x 8

Please Help Me Out!
Evaluate the expressions. Write your answer as a single base with a positive exponent.

(b^-7)^2 x b^6

a^-10 x a^8

Answers

Answer:

1/b^8, 1/a^2

Step-by-step explanation:

(b^-7)^2 x b^6

= b^-14 x b^6

= b^-8

= 1/b^8 In a fraction

a^-10 x a^8

= a^-2

= 1/a^2 In a fraction

Answer:

1/b^8

1/a^2

Step-by-step explanation:

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

Answers

Answer:

a

Step-by-step explanation:

i just needed the points

Solve this please
⎯.+/⎯.+/

Answers

Whattttttttt?????????

Giovanni can read 210 words per minute. If there are approximately 540 words on a page, about how many pages can he read in 3 hours? Round your answer to the nearest whole number.

462 pages
122 pages
233 pages
70 pages

Answers

It would be 70 pages because 210 divided by 3 is 70

She can read 70 pages in 3 hours.

What is proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

The relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

We are Given:

Giovanni can read 210 words per minute and, books contain 540 pages

So, she can read the portion of book

=210/540

= 21/54 per minutes

= 21/54  x 60

= 23.3 pages in one hour

and in 3 hours she can read

= 23.3 x 3

= 70 pages in 3 hours

Learn more about unitary method here:

brainly.com/question/22056199

#SPJ2

Solve for b.

b - 7 = -20
A. b = -27
B. b = -13
C. b = 13
D. b = 27

Answers

Answer:

B. b = -13

Step-by-step explanation:

b - 7 = -20

move variables and numbers to different sides of the equal sign by adding 7 to both sides

b - 7 + 7 = -20 + 7

b = -13

your answer would be -13 :) have a good day

What would be the equation of the horizontal line passing thought the point (3, -5)
PLEASE HURRY!!!

Answers

the x axis line because a horizontal line is on the x axis

the equation for the horizontal line that passes through the point (3, -5) is y=-5

A holiday meal cost $12.50 a person plus a delivery fee of 30$. Which equation is right?

1. y=30+12.50x
2. y= 12.50+30
3. 12.50x=30
4. y=12.50+30x

Answers

Answer:

1. y = 12.50x + 30

Step-by-step explanation:

A holiday meal cost $12.50 a person plus a delivery fee of 30$

Let x = number of people ordering a meal and y = total cost

It cost 12.50 per person so the cost regarding the number of people that orders food can be represented by 12.50x.

There is also a $30 delivery fee.

So the total cost would (y) = 12.50x + 30

The answer would be 1. 12.50 and 30 just swapped places.

y=12.50x= 30
i’m not sure if i’m wrong or right

Sean's Cafe has regular coffee and decaffeinated coffee. This morning, the cafe served 18 coffees in all, 9 of which were regular. What percentage of the coffees were regular?

Answers

Answer:

50% of the regular coffee's were regular

50%
Explanation:
multiply 9 • 100
the divide 900 into 18
it should give you 50

The weight of Kyle's dog increased from 29.7 pounds to 48.9 pounds in an 8 month period. What was the average weight increase per month?

Answers

Answer:

per month means we divide by the months

here is our formula

we do 48.9-29.7 to see the increase, and divide by the months to see how much per month

(48.9-29.7)/8

We get 2.4, meaning the average weight increase per month is 2.4

Step-by-step explanation:

48.9-29.7=2.4 (: good luck hope you understand and get a good grade

Evaluate the expressions. Write your answer as a single base with a positive exponent.

a^-10x a8

(b^-7)^2x b^6

Answers

The guy above me is correct bc a turtle is behind you

What is the volume of this solid?
Most Precise Answer = Round to the nearest hundredth
Approximate Answer = Round to the nearest tenth if necessary
?

Answers

Answer:

  4188.79 yd^3

Step-by-step explanation:

The formula for the volume of a sphere is ...

  V = 4/3πr^3

A sphere with a diameter of 20 yards has a radius of 10 yards, so its volume is ...

  V = 4/3π(10 yd)^3 = 4000π/3 yd^3 ≈ 4188.79 yd^3

Rounded to tenths, that's approximately 4188.8 yd^3.

help look at pic pls

Answers

Answer:

A) -68

Step-by-step explanation:

Use the model to solve x PLEASE EXPLAIN IF U CAN
A. x=2
B. x=4
C. x=8
D. x=12

Answers

I think it’s A or B not for sure.
Your answer will be A, just combine like terms

Audrey needs to remove one point from the graph so it represents a function. What points can Audrey remove?

Select all that apply

Answers

Third and fourth points are good
im pretty sure one of the answers is b

WILL GIVE BRAINLIEST LIKE FIVE HEARTS THE WHOLE SHEBANG

The graph shows how many bottles a machine caps in a certain number of seconds.


Part A

What is the constant of proportionality, and what does it mean in this situation?

Use the drop-down menus to show and explain your answer.

The constant of proportionality is

Choose...

; the machine caps

Choose...

bottles in

Choose...

.

Answers

I’m assuming that this is about how much the machine can cap so I would say bottles in.

Find the missing number.

Answers

25% - from 180 degrees

Answer:

25% - from 180 degrees

Step-by-step explanation:

Question: 5/12 − 2/5= 1/60​


A. The answer 1/60 is not reasonable because ​5/12​ is closer to 1 than to ​1/2​, and ​2/5​ is closer to 0 than to ​1/2​, making the difference close to 1/2. ​

B. The answer​ 1/60 ​is not reasonable because ​5/12​ is closer to ​1/2​ than to 1, and ​2/5​ is closer to 0 than to ​1/2, making the difference close to​ ​1/2​. ​

C. The answer 1/60 is reasonable because both fractions are closer to 1/2 than they are to 0, making the difference close to 0.

D. The answer 1/60 is reasonable because both fractions are closer to 1 than they are to 1/2, making the difference close to 0.

Answers

Answer:

C

Step-by-step explanation:

It is reasonable: the answer is both reasonable and correct because 5/12 - 2/5 = 1/60. This is because using cross multiply, 5 x 5/12 = 25/60, 12 x 2/5 = 24/60. 25/60 - 24/60 = 1/60.

Both are closer to half: half out of 12 would be 6/12 and 0 would be 0/12, so 5/12 is closer to half because 5/12 is closer to 6/12 than 0/12. Half out of 5 would be 2.5/5 and 0 would be 0/5, so 2/5 is closer to half because 2/5 is closer to 2.5/5 than 0/5.

The difference is close to 0: 1/60 is very close to 0. It's only worth 0.016.

The answer is b bc if you know how to work it out then you can find it

Eli won 2 out of 3 chess games on day. At this rate, if he played 35 games, how many did he win? Write and solve a proportion

Answers

Answer:

23

Step-by-step explanation:

2/3 = x/35

3x = 2 × 35

3x = 70

x = 70/3

x = 23 1/3

Answer: 23

Which one is it in the screenshot below?

I know it has to be one of these two:

Q or R

Answers

The answer would be Q. This is because R has an undefined slope.
It would have to be Q. Think of how the line Q is not going up at all.

Solve 3(x−13)=y−2 for y. Then tell whether x and y show direct variation. Please help me with this. 60 points!

Answers

Answer: if you put 60 points onto the question it divides it by 2 for 2 different question get half of what it is so if you want each person to get 60 you need to add 120 points

Step-by-stepStep-by-step explanation:

Answer:

y=3x+13

Step-by-step explanation:

A cylindrical glass holds 37683768 cubic centimeters of water. It has a height of 1212 cm. Find the area of the base of the glass.

Answers

Answer:

31092.2178

Step-by-step explanation:

Divide the volume (37683768) by the height (1212) to get the area/length x width.

37683768 / 1212 = 31092.2178

Someone help me with this please, I really need help, and it's due tmrw...PLEASE

Answers

Y = 2/1x + 6


I did the work in this photo:

Answer:

y=2x+6

I started with the simplist equation for the first set (0,6) of y=X+6 and then tested it out for the second set (1,8) which didn't work. I then ajusted it so it would work with the second set by doing y=2x+6. Lastly, I tested this equation with all of the points and it worked for them all.

can some one pls help asap

Answers

Answer: See the diagram below

==========================================================

Explanation:

She starts off finding the mean of the data. So she adds up the values to get 48+54+57+62+69 = 290, and then divides by 5 to get the mean of 290/5 = 58. That explains why there's a 58 in the first row of the second column.

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

For the next step, she subtracts 58 from each data item. If the result is negative, then go with the positive version (ie apply the absolute value)

|48-58| = 10|54-58| = 4|57-58| = 1|62-58| = 4|69-58| = 11

This leads to the list 10,4,1,4,11 which goes in the first slot labeled "drag and drop an item here". This is the list of distance values each item is from the mean.

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

The last thing to do is find the mean of the set {10,4,1,4,11}

add: 10+4+1+4+11 = 30

divide by five: 30/5 = 6

The mean absolute deviation (MAD) is 6

This represents the average distance each data value is from the mean.  The MAD tells us how spread out the data is. It's similar to the standard deviation.

Patty bought cupcakes for her sister's birthday party. 15 out of the 25 cupcakes had sprinkles on top. What percentage of the cupcakes had sprinkles?

Answers

Answer:

60%

Step-by-step explanation:

15/25=.6

I got you!
Answer is: 60%

Write the coordinates of two points that are the given distance from these points and horizontal/vertical:
6. 5 units from (–1, –2) ( , –2) and ( , –2) _______________________
7. 8 units from ( 2 , 4 ) ( 2 , ) and ( 2 , ) _______________________
8. 3 units from (–7, –5) (–7, ) and (–7, ) _______________________
9. 6 units from ( 4, –1) ( 4 , ) and ( 4 , ) _______________________
10. 10 units from (–1, 9) ( , 9 ) and ( , 9 ) ______________________
11. 7 units from (–3 , 2) ( , 2 ) and ( , 2 ) ____________________________

Answers

Answer:

5 units from (–1, –2) ( , –2) and ( , –2) ____-1,-6_______________

7. 8 units from ( 2 , 4 ) ( 2 , ) and ( 2 , ) _____6,4______________

8. 3 units from (–7, –5) (–7, ) and (–7, ) ___-7,-19______________

9. 6 units from ( 4, –1) ( 4 , ) and ( 4 , ) ____4,7________________

10. 10 units from (–1, 9) ( , 9 ) and ( , 9 ) _____-1,8______________

11. 7 units from (–3 , 2) ( , 2 ) and ( , 2 ) __-3,6_________________

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