Mathematics Middle School

please explain steps

Please Explain Steps

Answers

Answer 1

Answer:

b.

Step-by-step explanation:

you keep the hole number. times the exponent 's. since one of them are negative it will be a fraction.

Answer 2
When using the PEMDAS method, in this problem you would start with simplifying the exponents. Then you would multiply.

Related Questions

is math related to solar system

Answers

Answer:

Sis what I'm not really good at this stuff but I'm pretty sure like only 0.1 of the stuff you learn in science will involve math so I'd say no

Step-by-step explanation:

it's free real estate

Answer:

Yes it is. Math is used everywhere in the solar system!

Step-by-step explanation:

Math can be used to find distance between planets or gravity and/ or gasses there is in one planet.

HELP FAST PLEASEEEE DUE IN 2 MINS!!!!URGENTT
Julie borrowed $850 to purchase a couch. She will pay off the loan after 3 years by paying back the principal plus interest at 6.5% simple interest? How much will she pay back altogether?

Answers

Answer:

julie is broke.....

Step-by-step explanation:

Which expressions are equivalent when m=1 and m=4

Answers

the second one is
the right answer.
(i think i’m right i’m sorry if i’m not !)

Answer:

option 2

Step-by-step explanation:

p The graph of a function has a slope of −2, passes through the point (−4,−1), and is a straight line.

Select all the statements that must be true.


The graph will pass through the point (1,−7

The constant rate of change is −2.

The graph will pass through the point (−1,−11).

The function has a y-intercept at (0,−9).

The graph represents a discrete function.

Answers

The correct answers are
The constant rate of change is -2
The function has a y-intercept at (0,-9)
That’s it have a good day please mark me brainiest

Daniel buys a video game, which is on sale for 30% off the regular price of $69.98. The combined taxes are 15%. How much does Daniel pay? Explain.

Answers

Answer:

$56.33

Step-by-step explanation:

30% off of $69.98 is ($49.99) then add 15% which makes it $56.33 .!

Answer:

48.986

Step-by-step explanation:

What is the product of 0.875 × (-16) × (-7) × (-0.0714) in fraction form simplified

Answers

ummm i got -17493/2500, i have a feeling that’s a bit off but you could try it, i hope this helps

you dont have to do all but I really just need help but if you do I will give brainiest

Answers

Answer:

11.V=-2

12.X=6

13.A=9

14.X=-4

15.A=-5

16.P=3

17.K=6

18.M=0

Step-by-step explanation:

Subtract the number on each side to get the variable by itself or add depending on if it has a plus or minus on the side with the variable.

Hope this helps!

Please give me a brainist and add me also make me stars go up. :)

Answer:

11. v = -2           12. x = 6        13. a = 9    14. x = -4       15.  a = -5       16. p = 3      

17. k = 6           18. m = 0

Step-by-step explanation:

The distance between two rivers on a city map is 8.5 centimeters. The scale on the map states that 3 centimeters represents 6 kilometers. What is the actual distance between the two rivers?
A) 2.1 kilometers
B) 4.25 kilometers
C) 17 kilometers
D) 18 kilometers

Answers

your answer is 17 kilometers :)

The actual distance between the two rivers is 17 Km.

What is the Distance?

Distance is a numerical or occasionally qualitative measurement of how far apart objects or points are.

Given that, the distance between two rivers on a city map is 8.5 cm. The scale on the map states that 3 cm represents 6 km.

Scale factor = 3/6 = 1/2

8.5*2 = 17

Hence, The actual distance between the two rivers is 17 Km

For more references on Distance, click;

https://brainly.com/question/15172156

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Elena solved the equation 2(x – 9) = 10 In the
following way. What mistake did she make?

Answers

Answer: Subtract 18 on both sides is wrong. Its supposed to be add 18 on both sides.

Step-by-step explanation:

She subtracted instead of adding.
2x-18=10
You add 18 to both sides
So it would be 2x=28
Then you divide 2 on both sides so x=14

Coal mines have shafts that can be as much as 7^3 feet deep. About how many feet deep into the Earth's crust are these shafts?

Answers

Answer:

343

Step-by-step explanation:

7 x 7 = 49

49 x 7 = 343

The coal mines is 343 feet deep into the Earth's crust are these shafts.

What is Unit of Measurement?

A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.

Given that Coal mines have shafts that can be as much as 7³ feet deep.

We need to find about  how many feet deep into the Earth's crust are these shafts.

From the given it is 7³ feet deep.

So let us find the value of 7³

7×7×7

49×7

Forty nine times of seven

343

Three hundred and forty three.

So the coal mines is 343 feet deep into the Earth's crust are these shafts.

Hence, the coal mines is 343 feet deep into the Earth's crust are these shafts.

To learn more on Unit of Measurement click:

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Whoever answers first I will give the name the Brainliest.!

900 +$3,400 +) $16,900 + $16,300 + $4,500 + $1,200 =

Answers

Answer:

43,200

Step-by-step explanation:

What's additive inverse? Like for example this expression 2-16 what's the additive inverse??

Answers

Answer: The multiplicative inverse is 1/2 the addition inverse is -2

Step-by-step explanation:

Since the inverse of multiplication is division, use a fraction. The inverse of addition is subtraction.

Multiplicative inverse is 1/2 addition inverse is -2

Sixty percent of those who attended the soccer game were parents. There were 120 people who attended the soccer game. How many parents attended?

40

48

60

72
--------------------------------
During a school assembly, 15 out of 60 students wore orange shirts to show school spirit. What percentage of the students did not wear orange shirts?
Group of answer choices

8%

15%

25%

75%
--------------------------------
The sales tax on groceries was 2%. Karen paid $2.50 in sales tax on the groceries she bought. How much money did Karen spend on groceries before tax?
Group of answer choices

$125

$100

$50

$25
--------------------------------
A club has 100 members.

2/5 of the members worked on the school painting project.
The rest cleaned up a local park.
What percentage cleaned up the park?

Group of answer choices

20%

40%

60%

80%
--------------------------------
At a school, 52 students in 6th grade were on the honor roll. If 28% of the 6th graders were on the honor roll, about how many students are in the 6th grade?
Group of answer choices

186

134

80

67

Answers

Answer: 48, 25%, 125 , 60,  80

Step-by-step explanation:

Please solve!
6y-6=4y+16

Answers

Answer:

Your answer is y=11 if ya need proof its in the picture :)

Step-by-step explanation:

Which of the following expressions represents the phrase "six added to five times a number"?
O6+5x
O6+5+x
O5+6x
o 11 x

Answers

It’s a because 6 is being add to 5 which is being multiplied with x

Ethan’s cookie recipe uses 3 cups of sugar to make 21 cookies. Mia’s recipe uses 4 cups of sugar to make 24 cookies. Who's recipe has more sugar per cookie?

Answers

Alright, so ethan’s cookies would be 21 cookies per 3 cups of sugar. So you would do 21/3 to find you get 7 cookies per one cup of sugar

Then Mias cookies are 24 cookies per 4 cups of sugar. You would do 24/4 to get 6, so 6 cookies per cup of sugar.

Mia’s cookies make less cookies per cup of sugar, so they’d have more sugar in them.

Mia- 6:1
Ethan- 7:1

In an equilateral triangle ABC were placed points M and K on AB and BC respectively. Angle BKA = BMC. Prove that BM = BK.

Answers

no clue but i need points im superrrr sorry Step-by-step explanation:

Twenty-one less than 9 times a number is the same as 27 more than the number.

Answers

Answer:

wheres the question?

Step-by-step explanation:

Answer:

9 i think im confused lol

Step-by-step explanation:

Which best proves why the expressions 4 (x + 3) + 2 x and 6 (x + 2) must be equivalent expressions?
A. When x = 3, both expressions have a value of 30.
B. When x = 5, both expressions have a value of 42.
C. When x = 1, both expressions have a value of 18, and when x = 8, both expressions have a value of 60.
D. When x = 2, both expressions have a value of 15, and when x = 6, both expressions have a value of 39.

Answers

Answer:

It's A

Step-by-step explanation:\\\\\\\\\\\\\

Answer:

Your answer would be A sorry if I'm late to answering!

Step-by-step explanation:

What is the equation to find the circumference of a circle?

Answers

Answer:

C=2 π r

Step-by-step explanation:

Answer:

C=2(3.14)r

or

C= 3.14(d)

Step-by-step explanation:

This is an equation to find circumference using radius or diameter

At a book store there are 25 books on the clearance section. 20 of the books are young adult novels and the rest of the books are picture books. Which statement is not true? *
A) For every 4 young adult novels, there is 1 picture book
B) For every 5 books, 4 are young adult novels
C) The ratio of picture books to young adult novels is 1:4
D) There is 1 picture book for every 5 books
E) All statements are true

Answers

The statement that is not true is A
Option A is not true

A bag of pennies weighs 5.1 kilogram. Each penny weighs 2.5 grams. About how many pennies are in the bag?

A. 20
B. 200
C. 2,000
D. 20,000

Answers

Answer:2K

Step-by-step explanation:since one kilogram is 1,000 grams and there 5.1 kL it’s 5,100 grams so about 2,000 pennies

Answer:

C, 2000

Step-by-step explanation:

First convert kilo grams into grams, there are 1000 grams in 1 kilogram, the prefix "kilo" means thousand. if you multiply 5.1 times 1000 you will get 5100 grams in the bag. Divide this by the weight of the penny, 2.5, to get 204. The question asks "About how many pennies are in the bag?" so we know to round to the closest answer being c.

Pls help me and thank you!!!

Answers

Answer:

Dude, how do you figure out what x is

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

3x - 20 = 2x +15

1x - 20 = 15

1x = 45

can you guys help me please

QUICKLY

Answers

Answer:

Answer is 2x2x3x7

Step-by-step explanation:

2x2=4

4x3=12

12x7=84

Answer:

2, 2

Step-by-step explanation:

7x3=21

21x2=42

42x2=84

So you answer for both of the boxes is two

Who ever answer this question with explanation will get Branily!!!!!

Answers

40 percents because 20/100=5 5*8=40

Answer:

Step-by-step explanation:

So in order to get the answer you must put this as an equal fractions  8/20 as a fraction that equals to x/100 to get the percentage. After doing that you divide the known part of the fractions which in this case is the Denominators 100/20 gives you 5. After you get that answer you use it to multiply by 8 to get the percentage which I think is 40%

18) slope and y-intercept, I need help ASAP

Answers

The rate of change is 35. It represents the increase in saving every month
The rate of change is 1/35 because the number of months(x) is increasing by 1( the numerator) and the total savings(y) is increasing by 35( denominator).

What are these two equations in slope intercept form?

Answers

1. 4x - y = 8
4x = y + 8
Y = 4x - 8

2. 2x + 3y = 4
3y = -2x + 4
Y = -2/3x + 4/3

Answer:

4x - y = 8

4x = y + 8

Y = 4x - 8  

2x + 3y = 4

3y = -2x + 4

Y = -2/3x + 4/3

Step-by-step explanation:

Ten children will share a bag of candy consisting of 78 pieces. Every child will receive the same number of pieces. What is the greatest number of pieces of candy each child can receive?


(This is division and has a reminder!)

Answers

Answer:

78÷10=7.8, so roughly 7-8 pieces of candy per child.

Answer:

The max that each chiles can receive is 7 pieces. This is because when you have a remainder in this type of equation that cannot pass it out without using fractions you keep it away.

Step-by-step explanation:

Please help me I will give you the brain thing and extra points (image below) 2/5

Answers

Answer:

The slope is 0

Step-by-step explanation:

here the thing to remember

If you can walk on the line, the slope is 0, if you can’t it’s undefined

Yah it’s 0 just to resure you

THIS IS THE SECOND ONE (Sorry for caps :>)

Answers

It would be 288 calories per 1 slice
288 calories for one slice
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