Mathematics Middle School

Please help me I will give brainliest!

Answers

Answer 1

Answer:

D. 2 3/4 + (-3 1/4) = -1 2/4

Step-by-step explanation:

Its like addition, but it is actually subtraction.

like this: 2 3/4 - 3 1/4 = -1 2/4

Hope this helps!

It you like it, plz mark me as brainiest!

Answer 2

Answer:

The answer is- D

Step-by-step explanation:

I took the test and got it right!

Hope this helps you

Related Questions

can you help me out??

Answers

Answer:

80Nm?

Step-by-step explanation:

80nm should be correct

Could someone help me on my assignment?

its a repost because last time i asked i didnt get a full answer nor was it even correct

Answers

first box (under 1) is 7, next box (above 12.5) is 6.5 and the last box is 16

solve using elimination:

5x-7y=-16

4x-2y=-20

Answers

X=- 4
Y= 0
Hope this helps

X=-4
Y=0
Hope this helps you

|-4| - 8 + 10 = ???
answer for points

Answers

The answer is 6 because you have to find the value

Can like someone help me with O.o.O (order of operations)

Show your work please...thats why I provided a ton of space.

Answers

Answer:

183

Step-by-step explanation:

168+2^3+3^3-20=

Exponents

168+8+27-20

Addition

203-20

Subtraction

183

183 is the answer.

Answer:

Step-by-step explanation:

Using the process PEMDAS I got the answer 10.

168÷2^3+3^3-20

There are no parentheses so you solve the exponents first.

168÷8+9-20

Next, we do not multiply which makes division our second step.

This gives us 21+9-20.

Now we add 21+9 which gives us the sum of 30.

30-20 is equal to 10.

This is how I got my answer and I really hope this helps you

The table below shows that 1 day equals 24 hours. Notice that 12 hours is one-half of that. Use the table to help you determine how many days are equal to 42 hours. 1 day 24 hours 12 hours 12 hours (3 points) a 1 and 1 over 4. days b 1 and 1 over 2. days c 1 and 3 over 4. days d 2 days

Answers

Answer:

42 hours is 1 and 18 hours. 42 hours, there are 12 hours 3 R 6 times.

Step-by-step explanation:

42 diviended by 24 is 1 R18.

Then 42 diniended by 12 is 3 R 6.

Answer is “A” because you multiple 12 x 2

Graph this line using the slope and y-intercept:
y=–2/5x + 6
Click to select points on the graph.

Answers

Step-by-step explanation:

start at the 6 then go down 2 Y and over 5X

Answer:

See explanation below

Step-by-step explanation:

Start at (0,6) which is the y-intercept where b=6, then go down 2 units, and 5 units to the right which represents the slope m=-2/5 and mark that point. Repeat until you feel you're done and then connect the points to form the line of the equation.

For example, the next point after (0,6) would be (5,4) because by going 5 units to the right and 2 units down, we can represent this as (0+5,6-2) which is (5,4). I've attached a graph with some points to help draw the line.

Hope this was helpful!

If Dorie devotes the same number of hours to studying for these three classes each week, what is the total number of hours Kathleen will study over a three week period?

Answers

Answer:

The answer is 17.2 hours

Step-by-step explanation: Because first you add all hours together (which is 86/15) then multiple it by 3 (week) which is 86/5 = 17.2 hours

Lin rode her bike 2 miles in 8 minutes. She rode at a constant speed. Complete the table to show the time it took her to travel different distance at this speed.

Answers

0.25 for the distance and 4 for the elapsed time

4 for the time and 0.25 for the distance

which expression represents the area of the shaded rectangle (Will earn 50 points and if answer correct then will earn Brainliest)

Answers

Answer: The fourth expression :)

( 7/8 × 1/3 sq ft)

Hope this helps :]

P.s. Can you mark me as the brainliest? <3

[tex]\sqrt[3]{488+24} \\[/tex]

Answers

Answer:

Step-by-step explanation:

First, add the values inside the radical

488+24 = 512

[tex]\sqrt[3]{512}[/tex] = x

This means that: [tex]x^{3}[/tex] = 512

Therefore, x must be equal to 8.

[tex]\sqrt[3]{512}[/tex] = 8

How do you find the area's square root?

Answers

To find a square root you have to determine the greatest number multiplied by the same number to find the square root for example the square root of 4 would be 2 since if you multiply 2x2 you get for which 2 is the greatest number that can be multiplied by 2 and get 4

Which of the following statements concerning the linear correlation coefficient are true?

I: If the linear correlation coefficient for two variables is zero, then there is no relationship between the variables.
II: If the slope of the regression line is negative, then the linear correlation coefficient is negative.
III: The value of the linear correlation coefficient always lies between –1 and 1.
IV: A linear correlation coefficient of 0.62 suggests a stronger linear relationship than a linear correlation coefficient of –0.82.

I and IV

II and III

I and II

III and IV

Answers

Answer:

I and IV... ig (:

I and IV because i’m very extremely intelligent

I dont understand nothing for math because they teach us hard ways to do it even tho that's how u actually have to do it

Answers

Answer:

First Picture: A

Second Picture: C

Third Picture: B

Forth Picture: C

Fifth Picture: C

Step-by-step explanation:

The order is ACBCC and if it’s not I’m sorry

3/4% of 170 Please write helpful answer

Answers

Answer:

1.275

Step-by-step explanation:

Answer:

1.275 I hope this is a helpful answer if this helps or not

Step-by-step explanation:

Dave builds sheds. The widths of the doorways for the sheds vary with the area of the shed. One of Dave's sheds has an area of 24 square feet and a doorway that is 2 feet wide. Another one of Dave's sheds has an area of 48 square feet and a doorway that is 4 feet wide. What is the pattern rule that Dave uses for the widths of the shed doorways?

Answers

Answer:12 ft long

Step-by-step explanation:

First, divide 24 by 2 and get 12

Second, divide 48 by 4 and also get 12

Last, the answer is 12 ft long

Help please I'm tired and I just need help with this one

Answers

Answer:

My answer would be y=x times 4 because every 4 packs of honey you get, the number goes up times 4.

Example: 4x4=16, 8x4=32

Hopefully that explains it.

y=x•4 because i said so

A rectangular community swimming pool is 31 2/3 meters long and 7 1/5 meters wide. The area around the swimming pool is covered with tiles. The area covered with tiles is 25% of the total area covered by the swimming pool. The total cost of the tiling is $712.50. What is the cost of the tiling per square meter?

Answers

Answer:

$12.50

Step-by-step explanation:

First, we find the area: 31 2/3 * 7 1/5 = 95/3 * 36/5 = 3,420/15 = 228 square meters. Then, we find the part that the tiles cover: 228 * 0.25 = 57 square meters. Now, we find the cost of the tiling per square meter by dividing the total cost by the total amount of tiling: $712.50 / 57 = $12.50. $12.50 will be your answer.

Tell me if I'm wrong :)

Solve the photo please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

75x + 15= 15(5x+1)
150x + 15= 15(10x + 1)
225x + 15= 15(15x+1)
300x + 15= 15(20x+1)

Hope this helps, sorry if I was to late

so this is for khan academy and I would really like some help with it :)

Answers

Its slope so itll be 4/2 and thats 2

y/x=2

Step-by-step explanation:

Because y=2 and x=4, we would do 4 divided by 2 (2/4=y/x) To get 2

Jessie typed the first 300 words of her essay in 12 minutes. She then got tired and typed the remaining 300 words of her essay in 15 minutes. what was the average speed of Jessie's typing?

Answers

Answer:

22,22 min

Step-by-step explanation:

Answer:

22.5 words per minute

Step-by-step explanation:

To find the average, you add the words per minute together then divide by two.

300/12+300/15= 45/1

22.5 words per minute

Item 4
Solve.

x2=−0.73

What is the solution to the equation?

Enter your answer as a decimal in the box.

Answers

Answer: 0.

Step-by-step explanation:

Move terms to the left side

−

x^{2}=-0.73

x2=−0.73

−

(

−

)

The answer is
-0.365

can someone give me answers plzz

Answers

Answer:

I do not understand that so, sorry!

Step-by-step explanation:

Does not make sense

1:38
2:76
3:114
4:152
5:190
Meaning Tim can’t read 200 words in 5 minutes but he can read 190 in 5 minutes I hope it helped? :)

Answer this question, and I will give brainleast.

Answers

Answer:

24/25

Step-by-step explanation:

The answer is 24/25

[[Please Explain]] The equation y - 2/3 = -2 (x - 1/4) is written in point-slope form. What is the equation in slope-intercept form? ³
O y = -2x - 1/6
O y = -2x + 7/6
O y = -2x + 5/12
O y = -2x - 11/12

Answers

Slope-intercept form is just solving for y in point-slope form

y - 2/3 = -2 (x - 1/4)

First you distribute the -2 because it is the first order of operation

y - 2/3 = -2x + 1/2

Then you add 2/3 on both sides because we want to isolate y

y = -2x + 1/2 + 2/3

Then we combine like terms

y = -2x + 7/6

B (second choice) is the answer

Write an equation of a line that passes through the point (2,0) and is perpendicular to the line y = − 1/2 x + 3.

Answers

Answer:

Step-by-step explanation:

The answer to your problem is y = 2x - 4

What is the height of this triangle when the base is 10cm

Answers

Follow lyricalcosplays on TikTok!! xxxx

Oh and the answer is 7

Answer:

I think it would be 7

Step-by-step explanation:

dont quote me on it though.

giving brainless out get it right

Answers

Answer:

97.5

Step-by-step explanation:

Supplementary angles always add up to 180.

180 - 82.5 = 97.5

Answer:

97.5

Step-by-step explanation:

180-82.5=97.5

Supplementary means they add up to 180 degrees.

So just subtract 82.5 from 180. You get 97.5

I want that brainliest O^O

Help I need to do this my 11:59

Answers

Answer:

Explanation:

-5=-10+?

-5=-5

5 because you do -10 and what makes you get to -5? 5 does

What are the numbers shown on the number line?

{-5, 2.5, 6}

{-5, 4, 5}

{-4, 2, 6}

{-5, 0, 6}

Answers

Answer:

{-5, 2.5, 6}

Step-by-step explanation:

-5, 2.5, 6 would be correct

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