Mathematics Middle School

Evaluate the following.
8-15/3+2x9?

Answers

Answer 1

Step-by-step explanation:

8-15= -7. (subtract)

3+2*9=21. (multiply/add)

-7/21 = 1/-3. (simplify)

Answer 2

Answer: the answer would be

Step-by-step explanation:

You would do the multiplication first: 2x9=18

second you would do the division: 15/3 = 5

third you would add: 18+5=23

Fourth you would subract: 23-8= 15

so your answer would be 15

( btw i was following the pemdas order, {parenthesis, exponents, multiplication, division, addition, subraction} just wanted to put this out there so it can help you with future problems like this :-) )

plz let me know if this is correct or nah, thx!

Related Questions

On Monday Marco practiced the piano for 7\10 hour. On Tuesday he practiced for 1 5\6 hours. He is supposed to practice 1 1\4 hours each day. What info tells if you have to use adding or subtracting fractions. PLEASE ANSWER FIRST-PERSON WILL GET A BRAINLIST ASAP!!!! PLUS 20 POINTES

Answers

Answer:

The info that tells that you have to add is how many hours he practiced in total on the first two days. The info that tells you to subtract is how many more hours did he practice on Tuesday.

Step-by-step explanation:

Answer:

Add

Step-by-step explanation:

I'm pretty sure :)

please i need help in this sb

Answers

The first question the answer is 15.
This happens because 2×8 = 16. After that you multiply 16 by half. What do you do that the answer is eight then you add seven and get 15.

For the second question you do -6 times negative one. After that you’ll get six. Then you would have to multiply it by -2 and get -12. Then you add -12+3 and then you get -9. Your answer is -9


For the third question you would add 7+3 and get 10. Then you would have to multiply it to the second power and get 1000. Then you would have to add 1000 with four. Then you multiply seven by -2 and multiply that by four. Then you would get -56
Your answer would be -56.

It was very complicated. If I get something wrong I am sorry. I hope I helped.

Answer:

#1=15 #2=-9 #3=44

Step-by-step explanation:

1/2 times 2 times 8 + 7      #2:-2(-1)(-6)+3                   #3:  (7+3)^2 +4(7)(-2)

1/2 times 2 = 1                           -2times -1=2                                 (10)^2 +4(7)(-2)

1 times 8= 8                              2(-6)+3                                           100+4(7)(-2)

8+7=15                                     2times -6=-12                                   100+28(-2)

                                               -12+3=-9                                            100+-56

                                                                                                            44

Tiyah has 3 coins in her pocket. She pulls
them from her pocket and they all fall on
the floor. What is the probability that all
three coins landed tails up?

Number of events:

Expression:

Answer:

Answers

Answer:

12.5%

Step-by-step explanation:

1 coin landing tails up is 50%

2 coins is 50% of 50% so 25%

3 coins is 50% of 50% of 50% so 12.5%

12.5% is the answer

please help ASAP
What is the value of m∠A + m∠B?

Answers

That would be 90 degrees
it would definitely be 90 degrees!!

Please show your work also I’ll put 30 points since this is a bit difficult :)


Which equation is equivalent to 60% of 25?
Select all that apply.

A. 0.6 x 26 =

B. x times 1.6 = 25

C. 6/10 = x/25

D. 60/100 = 25/x

E. x/25 = 60/100

F. 6.0 x 25 = x

Answers

Answer:

C, E

Step-by-step explanation:

only c. using cross multiplication , it shows the correct percent. 6.0 does not work because that would imply that it is 600% rather than 60 percent

How do you evaluate functions?

example:
Find the output, B, when the input, a, is 6.
b= -1 - 7a

Answers

The answer would be 41
Answer is 41! I believe so

Find the area.

81 cm 2
72 cm 2
54 cm 2
63 cm 2

Answers

Answer:

63

Step-by-step explanation:

the bigger shapes area is 54

the smaller shape coming off of it is 9

so then you add those to find the whole area of the shape

The answer is 63! Good luck

How can you figure out the diameter of a circle when you just know the area of the circle?
(Please answer in the simplest way) Thanks!

Answers

Answer:

yes

Step-by-step explanation:

If you have the area you can divide it by pi to get r squared. You square root this to get r and then just times your answer by 2. (r is the radius)

1 ribbon. The piece shown below is only 2/3 of the whole. Complete the drawing to show the whole ribbon.

Answers

I don’t exactly know what you’re asking. But from what I can tell I think you have to draw 1/3 of the hole because there are already 2/3. Comment below if that’s not what you’re asking. If you explain it to me that I’m wrong in the comments I will try and figure it out.

plz help me I need the answer

Answers

Answer:

I got 12.56 like the other person :)

Step-by-step explanation:

Heyy Im stuck on this, anybody wanna help me?

Answers

Answer:

9 or 8

Step-by-step explanation:

It’s 9 or 8 I think I’m too sure

How many solutions are in this equation

3(9v + 2) = 2(10 + 11v

Answers

Answer:

Ф∵∴∵Hello person!∵∴∵Ф

Your αnswer should be:

V=80

1 solution to this equation.

Step-by-step explanation:

I hope this helped! Please tell me if it is wrong!

←≡≡First answer!≡≡→

(Brainliest would be appreciated!)

║Have a great day! Thanks for your time!║

Answer:

8

Step-by-step explanation:

describe how you can tell wether a lines slope is greater than 1 equal to 1 or less than 1 pls help ill give you brainliest

Answers

Answer:

the slope is determined by rise over run, meaning you first have to see if the line is negative or positive by the direction it is facing, then you have two points that match accordingly to rise over run, to find out you have to see how many boxes(y) you are rising and however many boxes to the right(x) you are running, then you divide rise/run

Jason loves to play the piano but doesn't like practicing the exercises his piano teacher assigns. Jason knows the exercises will help him play better though, so he tries to motivate himself using his favorite treat — chocolate chip cookies. Jason gives himself 5 cookies for every hour he practices.
There is a proportional relationship between the amount of time (in hours) that Jason practices the piano, x, and how many cookies he gives himself, y.
Graph this relationship. Select two points to draw a line.

What is the slope of the line?

Answers

Answer:

i hated this math in middle school-

Step-by-step explanation:

Does the graph represent a function? Explain why or why not.

Answers

No because there are some x values that had more than one y value
no it doesn’t it needs to have an input and an output

What is g(-5)
A. -60
B. -8
C. 12
D. 42

Answers

Answer:

G should be 60

Step-by-step explanation:

Sorry if wrong

The answer would be -60

please help. i’ll give brainliest

Answers

This is not a function
The reason why is because 13 repeats 2 times that is the X value
If the X Value Repeats then it is not a function
Hope that helped :)
Yes what he said is correct

PLZ HELP
Find the surface area of this net.




_______ square centimeters

Answers

Answer:

228

Step-by-step explanation:

First, let's find the area of A and C

5  ✕ 12 = 60

60 ✕ 2 = 120

Then B

8 ✕ 12 = 96

Then the triangles

3 ✕ 5 ÷ 2 = 12 / 2

But now think,because there are 2 triangles, so we have to times it by 2 later so we can just leave it like this.

120 + 96 + 12 = 228

228 good luck!! Have a nice day

Can you solve this?Graph this line using slope and y-intercept.

Y=-8

Answers

go down in the middle until you reach -8
Go down in the middle until you reach -8

What is the solution for -10 -19
x -1

Answers

-19x-11 should be the answer... if the 19 and x aren’t combined then the answer is x-30
It’s is x-30 I think

Please help me with all of these I have them labeled as 1 2 3 4

Answers

Answer:

1. d

2. b

3. d

4. b

Step-by-step explanation:

1. d
2. a
3. d
4. b

when the circle is open, the sign should not have a line under it, when the arrow is to the left X is less than, when the arrow in the graph is going to the right, X is greater than

PLEASE HELP MULTIPLE CHOICE

Answers

Answer:

D) 1/5

Step-by-step explanation:

[tex] g(n) = 5^{-n+1} [/tex]

[tex] g(2) = 5^{-2+1} [/tex]

[tex] g(2) = 5^{-1} [/tex]

[tex] g(2) = \dfrac{1}{5} [/tex]

Answer: D) 1/5

The answer is D. 1 over 5 (1/5)

Solve one seventh plus nine fourteenths equals blank
Options:
ten fourteenths
eleven fourteenths
ten sevenths
eleven sevenths

Answers

Answer: Eleven Fourteenths.

Step-by-step explanation:

To write  1 /7   as a fraction with a common denominator, multiply by  2 /2 .

1 /7 ⋅  2 /2  +  9 /14

Write each expression with a common denominator of  14 , by multiplying each by an appropriate factor of  1 .

2 /14  +  9 /14

Combine the numerators over the common denominator.

2  + 9/14

Add  2  and  9 .

11 /14

solve for x
x=what
11x + 6 = 28

Answers

Answer:

X = 2

Step-by-step explanation:

11 x 2 = 22

22 + 6 = 28

Answer is 2
Explanation: you first try to isolate the x
And your only choice is to subtract the 6 so it cancels out on that side and whatever you do to one side you always have to do to another so 28-6 equal 22, 11x=22, now you divide by 11 making it x = 2. Hope this helps if you have any questions ask me

can someone help me with these

Answers

Answer:

5) 3x - 10 = x + 4

answer: 7

6) 6x + 4 = x - 11

answer: -3

Step-by-step explanation:

3x - 10 = x + 4

x = 7

6x + 4 = x - 11

x = -3

7 1/4x + x - 2 11/12x + 1 2/3x=5 3/5


find x

Answers

X= 4/5

Because...
You turn all the missed numbers in to improper fractions, then after you add all the ones with x’s after that you should get 7 then divide 7 by 28/5. Which equals 4/5

The value of x in the given expression is 4/5.

What is an expression?

An expression is a mathematical statement containing variable, numbers and which are related by at least one mathematical operation.

Given is an expression, [tex]7\frac{1}{4} x+ x+2\frac{11}{12} x + 1\frac{3}{2} x = 5\frac{3}{5}[/tex]

Solving for x, we get,

[tex]7\frac{1}{4} x+ x+2\frac{11}{12} x + 1\frac{3}{2} x = 5\frac{3}{5}\\\\\\\\\frac{29}{4} x+x+ \frac{35}{12} +\frac{5}{3} x = \frac{28}{3} \\\\\\ \frac{87x+12x-35x+20x}{12} = \frac{28}{3} \\\\\\\frac{84}{12} x = \frac{28}{3} \\\\\\\x = \frac{4}{5}[/tex]

Hence, the value of x is 4/5

Learn more about expressions, click;

https://brainly.com/question/14083225

#SPJ2

PLEASE HELP WILL MARK BRAINLIEST IN DECIMALS BTW

Answers

Answer:

11.7

Step-by-step explanation:

multiply RS by the scale factor to get R'S'

11.7 is correct
Hope it helps

I Need Help ASAP PLEASEEEEEEEee
What is the meaning of X

-16 + x = -15

Answers

Answer:

x = 1, your x is your answer.

Step-by-step explanation:

Add 16 on both sides to get your x value which is 1.

72 – 32 + 4 HELPPPP PLS

Answers

Answer:

44 is your answer

Step-by-step explanation:

44:) that is the answer and make sure to add labels!!

help me with this please i will crown brainliest :). even if it answer is wrong

Answers

Answer:

hi

Step-by-step explanation:

can i have brainliest

What is the question?????
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