Mathematics Middle School

Khan academy!! Pls help will give brainllyest!!!

Khan Academy!! Pls Help Will Give Brainllyest!!!

Answers

Answer 1

Answer:

C and D

Step-by-step explanation:

D. A negative times a positive gives you a negative, so the first 2 fractions will still be negatives after they get out of the parenthesis

C. The 4/7 and -4/7 cancel out

Answer 2
C and D
Hope it helps! Have a great day!

Related Questions

This is due today please help

Answers

Lateral Surface Area: 82.8

Explanation: Find the area of one side then multiply by 3 giving you the surface area

Total Surface Area: 110.4

Explanation: add all the triangles areas together giving you the surface area
Lateral surface area:82.8

ill give brainliest to who ever answers these questions first

Answers

high blood pressure, high cholesterol, and smoking.
Increasing age,high blood pressure, physical inactivity, obesity...hope this helps!!

help me out this is due at midnight along with like 10 other assignments

Answers

A) y=1/2x+3 and y-1/2x=3
B)y=-4 ( for both forms)
C) y=3/4x+2 and y-3/4x=2
D)y=3x-5 and y-3x=-5
Here are the answers along with the work on how i got the answers so you can understand the topic better :)

Olivia needed to send out 237 invitations by mail. She bought stamps in books of 20 and then bought extra stamps individually. How many books of stamps did she buy? How many extra stamps did she have to buy?

Answers

Answer:

12

Step-by-step explanation:

20*10=200+40=240-3=237 and you have 3 extra

can i pls get help on wat 2x - 3 = 15?

Answers

Answer: x = 9

Step-by-step explanation:

Step 1: Add 3 to both sides.

2x − 3 + 3 = 15 + 3

2x = 18

Step 2: Divide both sides by 2.

2x/2 = 18/2

x = 9

The answer is 9.

You’d move all terms that don’t contain x to the right side and solve it.

How many 1/3 inch cubes does it take to fill a box with width 2 2/3 inches, length 3 inches, and height 2 inches?

Answers

Answer:

432

Step-by-step explanation:

3x1/3 inch cubes make 1 inch

2x3+2 = 8

3x3 = 9

3x2 = 6

length x width x height

8x9x6 = 432

432 because 3x1/3 inch cubes is 1 inch
2x3+2=8
3x3=9
3x2=6
using length x width x height
8x9x6=432

I dont get this math work sheet my teacher give me so can you guys help me

Answers

Answer:

1.) y= -1/3x+3

2.) y= 3x-2

3.) -1/2x+0

Step-by-step explanation:

slope intercept

40% of farm animals are cows. 72 animals are not cow. How many animals in all?

Answers

Answer:

112 maybe.

Step-by-step explanation:

Answer:

115

Step-by-step explanation:

got it right on test

Can you help me with my math

Answers

I can help if you want me to

A plane leaves at 11:22 a.m. and arrives at 3:13 p.m. how long was the flight?

A. 3 hours 51 minutes

B. 3 hours 35 minutes

C. 14 hours 35 minutes ( I know its not this one lol)

D. 4 hours 35 minutes

E. 8 hours 9 minutes

Answers

D should be the answer

Answer:

3 hours and 51 minutes

Step-by-step explanation:

Let's take this one hour at a time. Add three hours to 11:22, and you will get 2:22. There are 51 minutes between 2:22 and 3:13. So your answer will be 3 hours and 51 minutes.

Plz help I don’t understand

Answers

Answer: I think it's "47.6 ÷ 3.9" and maybe "71.9 ÷ 6.5"

Step-by-step explanation: It's asking for you to put the boxes that have an estimated answer of 12 in the big box at the bottom. I hope this helps.

I did the math and yes it’s correct

Solve for x:

− 10x + 4 = − 7x − 14 −7x −14


PLEASE HELP ME!

Answers

Step-by-step explanation:

-10x + 4 = -7x - 14 - 7x - 14

-10x + 4 = -14x - 28

4x = -32

x = -8.

just by using distributive property i got x=-8

Help with math I need, do not understand I do (yoda speech) lol.

Answers

It’s the purple one!
The correct answer is A.
This triangle is considered an acute triangle because all the angles are under 90 °

Helllppp i will give you brainliest if you can help meeeeeeeee

Answers

Answer:

20 square meters

Step-by-step explanation:

To do this continue the line of the top of the rectangle so you split the figure into a triangle and a rectangle. The dimensions of the rectangle would be 8 by 2, so 8 * 2 = 16. Next, the dimensions of the triangle would be (4 - 2) by (8 - 4) = 2 by 4. The area would then be 2 * 4 = 8/2 = 4.

All you have to do now is add those two areas together, 16 + 4 = 20 square meters.

can you help me plz
and thank you

Answers

Honestly I don’t know this one but I think it’s like you start at 35 on the number line then you subtract 4 then add 2 then subtract 5. So I think it’s B but I’m not sure.

Solve for a.Question is in picture. Giving brainliest

Answers

A=3.6

hope this help:)

AHHHHHHHHHHHHHHHH

Use cubes with an edge length of 1/2 inch to build prisms with the lengths, widths, and heights shown in the table.

Answers

Answer:

3/2, 5/2, 7/2, 10/2, 15/2, 14/2, 23/2

Step-by-step explanation:

Don't use last answer if you don't have to.

1.  = 3/2 cubes =1 1/2

2. = 5/2 = 2 1/2

3. = 7/2 = 3 1/2

4. = 10/2 = 5

5. = 15/2 = 7 1/2

6. = 14/2 = 7

7. = 23/2 = 11 1/2

Tim pays $22.10 for 2.6 pounds of salmon. What is the price per pound of the salmon?

Answers

Answer: $8.50

Step-by-step explanation:

Divide $22.10 by 2.6

Answer is 8.50 dollara

Dave walked to his friend's house at a rate of 4mph and returned back biking at a rate of 10mph. If it took him 18 minutes longer to walk than to bike, what was the total distance of the round trip

Answers

Answer:

4 miles

Step-by-step explanation:

Does anyone know the answer?
ASAP!

Answers

The answer
should be 4%
The answer you are looking for is 4%

Multiple Answer.
Solve each equation

A. f + 2/9 = 9 1/9
B. f = 7 8/9
C. f = 8 7/9

Answers

Answer:

A.8 8/9

Step-by-step explanation:

A. f+2/9=9 1/9

f+2/9=82/9

f=82/9-2/9

f=80/9

f=8 8/9

i did not understand B and C

Answer is A hope this helps

Need help ASAP:)))))))))))))
Pls show ur work!
1.2x + 7 - 5x

2.2c - 3 = 2(6 - c) + 7c

Answers

Answer:

c = -75/14 OR c = -5.357143

Step-by-step explanation:

Simplify both equations:

1.2x + 7 - 5x =

-3.8x + 7

2.2c - 3 = 2(6 - c) + 7c =

c = −5.357143

OR

c = -75/14

The question wasn't quite clear, if this wasn't correct, please elaborate on what needed to be solved, and I'll fix my answer.

Hope this helped!

have a good day :)))

Sarah has all of the letters for the word WATERMELON in a bag. She chooses one letter, KEEPS it, then chooses another letter. What is the probability that she will choose the letter A and then the letter W?

1/9
1/18
1/90
2/9

Answers

Answer:

2/9

Step-by-step explanation:

Does each equation represent a proportional relationship? Choose Yes or No.
y = 7x – 3
Choose...Yes or no

y = 150x
Choose...Yes or No

Answers

Answer:

the first one yes the other on e not sure

Step-by-step explanation:

Answer: yes and no

Step-by-step explanation:

please answer these for me <3

Answers

8-21

9- -16 i think lemme do the next ones

During the holiday sale, the store discounted all items 1/3. What is the discount on a $19.95 item? plz help me

Answers

Answer:

Discount Final Price Each

1/3 off $ 19.95. $ 13.30

Step-by-step explanation:

I think its 13.30

Answer: $13.30

Step-by-step explanation: If you multiply 19.95 by 1/3 you will get the answer 6.65, that is the amount that is taken off. So next, you can just subtract 6.65 from 19.95.

19.95-6.65=13.30

So that is the answer, with the discount the item is now $13.30

need help asap, please
will give brainly

Answers

Answer:

I don't remember how to do them but i hope this helps

Step-by-step explanation:

Moves down 5 space on the y-axis and rotates clockwise 180%

1. The length of a rectangle is six less than three times the width. If the perimeter is 76, find the area of the
rectangle.

Answers

6 - w3 =6 is the answer
6-w3=6 is the answer, hopefully this helps

Please help me! trying to get a good grade!

Answers

Answer:

Coach should put in the back up player.

Step-by-step explanation:

Regular: 97% He will loose a total of 10% of effectiveness. Which will put him at a total of 87%.

Backup: 94% He will only loose 5% of effectiveness. Which will put him at only a 89%.

45-35=10 yards over usual field goal range.

I'm having some trouble with this question (picture included)

Answers

Answer:

2400

5400

8400

Step-by-step explanation:

You need to know the Divisibility Rules for 3, 5, and 8.

For 3: If the sum of the digits of a number is divisible by 3, then the number is divisible by 3.

For 5: If the last number is either 0 or 5, the entire number is divisible by 5.

For 8: If the last three digits of a whole number are divisible by 8, then the entire number is divisible by 8.

You can put 0 to the end to meet the requirements of the divisibility rule of 5,

so it should be like _ _ _ 0

for 8, you can use 400 so it should look like _ 400

For 3, the sum of the digits needs to be divisible by 3

if we say X to the first digit the sum of the digits is x+4

we can use 6 and 9, so x can be 2, 5, and 8.

Therefore we have:

2400

5400

8400

2400 ya Hurd me playa
Other Questions
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