Mathematics Middle School

Simplify each expression, 50 1/2+(-12.3), -50 1/2+(-12.3), -50 1/2 +12.3

Answers

Answer 1

Answer:

50 1/2 −12.3− 50 1/2 −12.3− 50 1/2 +12.3

= −262.8

Step-by-step explanation:

Because it is lolz :) Hope this helps!!

Answer 2

This would be - 262.8

Hope this helps !!!

Related Questions

Which quadrilateral makes this statement true? Quadrilateral ABCD

Answers

Answer:

Step-by-step explanation:

C is correct because when doing the numbers you'll see it <333

I’m pretty sure that the answer is C

8. A number k is decreased by 8 and the results is multiplied by 8. This product is then divided by 2. What is the final results?

f. 8k -4
g. 4k -8
h. 4k -32
j. 8k -64

Answers

Probably H to be honest

h. 4K - 32
(K - 8)*8 = 8k - 64
(8k - 64)/2 = 4K - 32

please help asap im so confused

Answers

Answer:

Step-by-step explanation:

Looked it up :) Have a great day!

Answer:

i think it is B

Step-by-step explanation:

Pleasee its pretty easy someone helpp

Answers

Answer:

81.5, 9, 180

Step-by-step explanation:

28.

c=9

9x9=81

a=1/2

81+1/2=81.5

29.

9x1/2=4.5

4.5x2=9

30.

15x15=225

9x5=45

225-45=180

hope this helps!!!

helpp !!! me plssssssss

Answers

for question 11 a triangle = 90° believe so to find E i think you do 47+ 30 which 77 n take that answer and subtract it from 90 so 90-77 then the answer should =

complementary would set them equal to 180 degrees. so question 11 would be:
DEF = 103 degrees
DEG = 77 degrees
hope this helps!

please help me struggling with this

Answers

What are you struggling with?

there's not a picture or anything ?? sorry i would help but there's nothing there

PLEASE HELP!!!!!! BRAINLIEST INCLUDED!!!!!!
Find the area of a right triangle with a width of 4cm and a length of 10cm

Answers

Answer:

20 cm

Step-by-step explanation:

triangle area formula:

a = w times h / 2

a = area

w = width

h = height

Let's fill in the equation!

a = 4x10/2

a = 40/2

a = 20 cm

Answer:

A=ab/2

Hope it helps

I'll give brainliest for however solves it for me
And please no links

Answers

Answer:

84 98

Step-by-step explanation:

Part a is 3m = 654, because JoAnn has 3 TIMES as much as Clarissa with a total of 654.

Part b is 218 since if you divide by 3 on both sides you get 218.

Find the volume of the sphere to the nearest square unit. Use 3.14 for T.
2 in.
a. 17 in
b. 33 in.
c. 33.5 in.
d. 34 in.

Answers

the answer is c. hope this helps

See Photo for information on how to answer

Answers

Answer:

It is a Geometric sequence

Common ratio = 1/5

Step-by-step explanation:

Whole chain: 25, 5, 1, 1/5, 1/25, 1/125, 1/625, 1/3125

Hope this helped

Barry made the model to show multiplying a fraction by a fraction.
Which multiplication sentence does the model show?

Answers

Answer:

did u forget to attach something

Step-by-step explanation:

Fill in the blanks on this frequency table

Answers

Answer

Step-by-step explanation:

Answer:

50 + 20 = 70

10 + 40 = 50

60 + 60 = 120

Step-by-step explanation:

ez pz lemon squeze

Charity is selling girl scout cookies. She wants to figure out how much she needs to sell so she knows what her
profits will be. Each cookie costs $0.20 to make plus 20 dollars for boxes. Which equation below will help Charity
figure out her total cost, c, for 50 cookies?
A 0.2c = 70
B.c=50 ( 20 ) + 0.2
C.c=50 (0.2) +20
D c= 70 (0.2)

Answers

Answer:

Step-by-step explanation:

I'm so sorry if this isn't right

Answer:

C. 50 (.20) + 20

Step-by-step explanation:

50 is the numbers of cookies so in order to find the total cost of JUST cookies we multiply 50 by .2 which is each cookies cost.

Then we add an additional 20 for the box.

So we get 50 (.2) + 20.

*BONUS* The total cost for one box is $30

the question is in the picturere

Answers

Answer:

Step-by-step explanation:

you subtract the ordered pairs on the sides. then the ones on the top and bottom. then you add all of the sides

Please help me with the work

Answers

Answer:

1. you answered correctly :)

2. how many 1/4's go into 12? in other words multiply 12 and 4 to get 48/4

3. Draw a diagram of 1/5ths until it equals 15 (you'll need a total of 75 boxes)

4. the problem is 18z=72 so you need to divide 72 and 18. 72/18=4. therefore z equals 4.

5. make up a division problem that has the answer of 8. for example 24/y=3. y will equal 8. and then use a tape diagram for that.

6. make up a multiplication problem that has an answer of 8. for example 3y=24. y will equal 8. and then use a tape diagram for that.

7. Meghan is correct. when you have y divided by two you need to do the opposite and multiply both sides by two. Meredith was incorrect because she switched the division and multiplication signs completely which is not what you are supposed to do.

Step-by-step explanation:

I hope this helped :) (the only thing you could write down word for word is #7. for 1-6 just read what i have to say and follow the directions and it should help) have a great day!!!!

I will solve these equations algebraically.

Here you are:

1. 30= 5w

Divide each side by 5.

30÷5= 5w÷5

6 = w

∴ w= 6

To check,

30=5w

Substitute w for 6

30= 5 x (6)

30= 30

LS= RS

(You were correct, great job!)

12 = x÷4

Multiply each side by 4.

12 x 4 = x/4 x 4 ↔ 4 and 4 cancel out.

48= x

∴ x=48

Checking:

12= 48÷4

12= 12

LS=RS

y÷5=15

Multiply each side by 5.

y÷5 x 5= 15 x5

y =75

∴y=75

Checking:

Substitute y for 75.

y÷5=15

75÷5=15

15=15

LS=RS

18x=72

Divide each side by 18.

18x ÷ 18= 72÷18

x = 4

∴x= 4

Checking

18x=72

18(4)=72

72=72

LS=RS

I hope that these solutions helped you. I am sure that using the solutions, you can figure out the other questions on your own.

To represent the number of squares after steps, Diego and Jada wrote different equations. Diego wrote the equation f(n)= (n+1) 2 . Jada wrote the equation f(n) = n 2+ 2n + 1. Are either Diego or Jada correct? Explain your reasoning.

Answers

I hope this is right

Answer:

nether of them are corrcet

Step-by-step explanation:

the steps are added by length and hight

What is the solution to the system of equations shown?

Answers

(1,3) because thats where the two lines intersect

One solution because the lines cross at one point if the don’t cross no solution and if they are over each other it’s infinitely many solutions

The level of water in a tank decreased steadily for a few weeks and then increased greatly for about a week..etc..

Graphs below

Answers

I think it might be D

Answer:

its the last one

Step-by-step explanation:

it decreased then went up to its highest point and stayed there

Andy is randomly selecting an outfit to wear to school. He can choose from 4 shirts: blue striped, red striped, black striped, or white. He can choose from 3 pairs of shorts: tan, blue, or plaid.
Determine whether each statement is True or False.

Answers

Answer:

a false

b false

c true

d false

Step-by-step explanation:

Xavier surveyed a random sample of the grade levels of the Spanish Club members in the county. The bar graph shows the results of his survey.

The bar graph is titled Random Sample of Spanish Club Members. The horizontal axis is labeled Grade level and lists four grades: ninth to twelfth. The vertical axis is labeled Number of members from zero to fourteen by twos. Ninth, eight. Tenth, fourteen. Eleventh, five. Twelfth, three.

Of the 300 students in the Spanish Club in the county, predict how many are 9th graders

Answers

Answer:

Step-by-step explanation:

If you add each value it equals 30.

30x10=300 so 8 (value of the 9th grade bar) times 10 equals 80.

The answer would be 80 !

Answers

Answer:

Need more info.

Step-by-step explanation:

Use variables to write an equation that represents the relationship between the time x and the distance y .

An eagle flies 40 miles per hour.

An equation that represents the relationship is y= ___

Please and thank you.

Answers

[tex]y=\frac{40 miles}{1hours} x[/tex]

Which of the following sets of numbers could represent the three sides of a triangle?

1. 13, 22, 37
2. 5, 7, 14
3. 15, 22, 39
4. 11, 21, 29

Answers

Number 4.

The 2 lower sides have to add to the bigger 3rd side.

Hope this helps m8.

SLOPE
3. If you're given the points:
(4, 10) (8, 9)
What are your y1 and y2?

Answers

Answer:

y1= 10 y2= 9

Step-by-step explanation:

There are two different answers to this problem.
First answer: y1=10 y2=9
Second answer: y1=9 y2=10

HELPPPPPPPPPPP URGENT MATTER

Answers

it would be 15.7! equation to get the circumference is C=2 pi r. 2 times pi multiplied by the radius! hope this helps

Here it is the problem:’)

Answers

Answer:

C, 64.8

Step-by-step explanation:

multiply 1.35 x 48 =64.8

Answer:

50.4

Step-by-step explanation:

hoped it helped

i need help 1 through 5 for now

Answers

1. 3x
2. x
3. 6x
4. 3x
5. 6x

Answer:3xx6x3x6xStep-by-step explanation:

x + 2x

= 1x + 2x

= (1 + 2)x

= 3x

2x - x

= 2x - 1x

= (2 - 1)x

= 1x

= x

4x + 2x

= (4 + 2)x

= 6x

6x - 3x

= (6 - 3)x

= 3x

5x + x

= 5x + 1x

= (5 + 1)x

= 6x

[tex] [/tex]

For the equation y=4x−2, what is y when x=9? DO IT CORRECTLY PLS!

Answers

y= 4(9)-2
Y= 36-2
Y=34
Hope this helps

Answer:

y= 34

Step-by-step explanation:

Plug in 9 for X and solve

Water flows back and forth between a small and large tank. When water is moving into a tank the flow rate is positive, and when water is moving from a tank the flow rate is negative. The large tank begins with 300 gallons of water, and the small tank begins with 200 gallons of water. After a period of 5 minutes, the large tank has the same amount of water as the small tank. Which statement describes the flow rate?
HELP??!?!

Answers

DONT DOWNLOAD ANY FILE SENT TO YOU IT DOESNT HAVE THE ANSWER ITS A VIRUS<3 i hope you get your answer soon though

The large tank decreases by 20 per minute

I’m not sure this helps sorry if it wrong

Please help giving brainlist

Answers

Don’t CLICK THE LINK !!!!!!

What’s the question?

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