Mathematics Middle School

Combine the like terms to create an equivalent expression:

-5j+(-2j)+3

Answers

Answer 1

Answer:

-7j + 3

Step-by-step explanation:

easy

Related Questions

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

Solve for a.Question is in picture. Giving brainliest

Answers

A=3.6

hope this help:)

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:

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

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

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.

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!!

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

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.

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:

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

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.

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 °

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

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.

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

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

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 :)))

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

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%

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

Can you help me with my math

Answers

I can help if you want me to

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 :)

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

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:

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

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

Does anyone know the answer?
ASAP!

Answers

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

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.

please answer these for me <3

Answers

8-21

9- -16 i think lemme do the next ones

Other Questions
Movies and TV shows often depict parents attempting to get their sleepy teenagers out of bed and out the door in time for school. (2) Provided that its a scene commonly played for laughs, in reality, sleep deprivation in teenagers is no laughing matter. (3) Adolescents have unique sleep patterns, and with an early school start, many are doggedly tired, leading to serious health and safety risks. (4) Thus, middle and high schools across the United States should heed the advice of doctors and start classes no earlier than 8:30 a.m.(5) Contrary to the notion that teenagers are naturally sluggish, they have a biological excuse for having trouble getting up at 5:00 or 6:00 a.m.: adolescents undergo a shift in their circadian rhythm, making it harder for them to fall asleep as early as adults or younger children. (6) The typical sleep cycle for teenagers begins at 11:00 p.m., when their bodies release melatonin, the sleep-inducing hormone. (7) In order for teenagers to get the full nine hours of sleep they need for optimal performance, they would have to sleep in until 8:00 a.m.(8) Now that experts better understand the sleep needs of adolescents, the average teenager gets fewer than seven hours of sleep a night. (9) Not only that, but waking before 8:00 a.m. interrupts their REM sleep, a critical stage of sleep that enables emotional regulation.(10) Indeed, continual sleep deprivation is bad. (11) Teenagers who get inadequate sleep are more likely to be overweight, have depression, perform poorly in school, and engage in risky behaviors. (12) Moreover, drowsy teenagers behind the wheel of a car are more likely to have slower reflexes and impaired judgment, putting them at even greater risk.(13) Schools that have pushed back the start time have reported remarkable results, including better academic performance, reduced absenteeism, and improved classroom environment. (14) Its no mystery why; well rested students have better concentration, attention, and behavior.The writer is considering adding the following sentence at the end of the third paragraph (sentences 8 and 9).The term REM sleep was first coined in 1953 by physiology professor and sleep researcher Nathaniel Kleitman and his graduate student Eugene Aserinsky.Should the writer add this sentence after sentence 9 ?A. Yes, because it gives important contextual information about REM sleep that helps the audience understand the writers main argument.B. Yes, because it acknowledges the contributions Kleitman and Aserinsky have made to the field of sleep research by properly attributing their ideas.C. Yes, because it provides an effective transition between the ideas discussed in the third paragraph and those discussed in the fourth paragraph.D. No, because it makes an obvious claim that is a known fact that does not require justification or defense.E. 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How do you think the systems on Earth work together to create what we see on Earth? which type of light ray can produce identical but reversed Which of the following molecules has a tetrahedral shape?A. SiH4B. PCI3C. BCI3D. H20 Write the equation of a line that is PERPENDICULAR to the line y=3x-4 and passes through the point (-6,1) Madame C. J. Walker developed all the following EXCEPThair products.beauty schools.nail polish.manicure training. CSc 2720 - Data Structures: Assignment 1 [100 points] How to Submit: Turn the .java file in Folder Assignment 1 in iCollege no later than 11:00 p.m. ET on 01/27/2021 Notes: 1. Do not use any library for matrix multiplication. 2. Always use comments to explain your program. 3. No copying allowed. If it is found that students copy from each other, all of these programs will get 0. 4. You must use matrix.java as the program name; otherwise, you will lose 10%. Requirements: You are to write a program name matrix.java that makes the dot products of 2 arrays. 1. Your program should prompt the user for the dimensions of the two squares matrices, making sure that the user input is equal to 50. 2. If the above is not met, prompt the user for a new value. 3. Now generate random integer numbers (ranging from 0 to 50) to fill both matrices. 4. Display these two matrices on the screen. 5. Multiply the two matrices and display the result on the screen. 6. Insert a clock to see how long it would take to multiply these two matrices and display the time (with a message to this effect). 7. Prompt the user asking if they want to repeat the program. A simple example of program output (here matrix dimension is 4, your should be 50):