Mathematics Middle School

the questions is on the attached screenshot file.

Answers

Answer 1

Answer:

1N2+3H2 ----> 2NH3

2KClO3 ----> 2KCl + 3O2

Step-by-step explanation:

well... this is chemistry but...

1N2+3H2 ----> 2NH3

2KClO3 ----> 2KCl + 3O2

do some lcm stuff i don't know how to explain

Related Questions

A farm stand sells apples pies and jars of applesauce. The table shows the number of apples needed to make a pie and a jar of applesauce. Yesterday, the farm picked 185 Granny Smith apples and 105 Golden Delicious apples. How many pies and jars of applesauce can the farm make if every apple is used?

Answers

Answer:

26.75

Step-by-step explanation:

5*4=20

185/20=9.25

3*2=6

105/6=17.5

17.5+9.25=26.75

Pleaseee helpp on this i really need the answer i will give u a brainly

Answers

Answer:

280 in^3

Step-by-step explanation:

(10 x 4) x 7

40 x 7

280

Answer:

280

:] can i get brainlyest

Step-by-step explanation:firs you take 7 and 4 multply =28 then x 10 =280

:))))))))

can you help me plsssssssssss

Answers

Answer:

Im pretty sure its D because its the kids that arent eating the lunch

Step-by-step explanation:

Answer:

Its def. D because thats who the principle wants to know why they dont eat it.

Step-by-step explanation:

If each 5 cm on the scale drawing below equals 2 yards, what is the actual area of the shape in square units?

Answers

Answer:

I need the image to do this or more information

I Need help ASAP if you get right ill name you BRAINLEST

Answers

There is no picture there

there is no picture.

Mattias wants to fill a rectangular flower bed with potting soil. What measure should he use to find out how much potting soil he needs to fill the flower bed?
volume
lateral area
surface area
area

Answers

Answer:

area

Step-by-step explanation:

Answer:

Area

Step-by-step explanation: Well because you need to know how much soil to put in the flower bed so you can add all the flowers

In a card game, a player earns -5 points for each red card drawn. If the player has a score of -20, how many red cards has the player drawn?

answer choices
-100
-4
4
100

Answers

Answer:

Step-by-step explanation:

-20/-5=4

Hello you seem lost

-5 is -20 is what well it’s -100 and -4 and 4

Sorry I need points

HELP ASAP PLEASE

as part his project, steve recorded the number the of eggs laid by several lizards from the local pet shop. the data steve collected is provided below.

10,7,8,8,9,10,9,10,8,11,11,9,7,10,9

In his report, steve should us the _____ as a measure of center since his data is ______

The two choises are
1 blank: mean, median.
2 blank: normally distributed, skewed, constant.

Answers

The median as a measure of center since his data is constant.

Answer:mean,and normally distributed

Step-by-step explanation:

I need help please answer legit

Answers

Answer:

I think it is the third answer i dont know though

Step-by-step explanation:

It’s c
Trust me I just did it

Can someone help me with this problem?
a + (b + 12) = (b + 12) + a

Answers

Answer: True 12=12

a+(b+12)=(b+12)+a

a+b+12=b+12+a

Which equals each other

PLS HELP WILL MARK BRAINLIEST

Answers

Answer:
Inequality sign.
N≥3
X<4
Y≥-2
B>-5
Q≤7
X>-5

Answer:

Other person is correct

Step-by-step explanation:

rat snakes produce 12to54 each year. if 8% percent of the young survives maturity,what is the maximum number of surviving offspring a rat snake would be expected to produce in 9 years?

Answers

39?
Sorry if It’s wrong!!

Answer:

Step-by-step explanation:

Since 54 is the maximum amount of offspring that ratsnakes produce we would multiple 54 by 9 giving us 486. and 8% of 486 is 38

Plz Help 30 points:
Part A: Larry earned $11 walking his neighbors' dogs on Saturday. He earned some extra money on Sunday doing the same thing. Write an expression with a variable that shows the total amount of money Larry has earned Saturday and Sunday.

Part B: Larry was able to walk 4 more than twice as many dogs as his friend Kyle. Write an algebraic expression to represent the number of dogs Larry walked compared with Kyle.

Answers

Answer:

Part A: T stands for total money earned and S stands for money earned on Sunday

T = 11 + S

Part B: We know Larry walked AT LEAST twice the amount of dogs than Kyle. So, L standing for Larry and K for Kyle:

L = 2(K)

But, it tells us he walked twice, plus 4 more. So our final equation will be:

L = 2(K) + 4

Step-by-step explanation:

The solution is : y= 11+x, is the expression with a variable that shows the total amount of money Larry has earned Saturday and Sunday.

The algebraic expression to represent the number of dogs Larry walked compared with Kyle is 2x +4 .

What is an expression?

An expression is any mathematical statement which consists of numbers, variables and an arithmetic operation between them. In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

here, we have,

Given data

Larry earned $11 walking his neighbors' dogs on Saturday

Also, he earned some extra amount say x dollars on Sundays

let the total earnings be y

Therefore the total earnings can be expressed as

y= 11+x

next part:

It is given in the question that

Larry was able to walk 4 more than twice as many dogs as his friend Kyle have.

Let number of dogs Kyle has = x

and Let Larry walks y miles.

According to the given data

y = 2x + 4

Therefore , the algebraic expression to represent the number of dogs Larry walked compared with Kyle is 2x +4 .

Hence, The solution is : y= 11+x, is the expression with a variable that shows the total amount of money Larry has earned Saturday and Sunday.

And, the algebraic expression to represent the number of dogs Larry walked compared with Kyle is 2x +4 .

To learn more on Expression click:

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Given a triangle with perimeter 63 cm, one side of which is 21 cm, and one of the medians is perpendicular to one of its angle bisectors. Find the lengths of all sides of the triangle. I will mark brainliest. I IS NOT 21, 21, 21

Answers

Answer:

21 ..

Step-by-step explanation:

Francesca has 9 striped shirts, Francesca has 9 striped shirts, which is 15% of the total number of shirts in Francesca's drawer. How many shirts does
she have in her drawer?
A) 167 shirts
B) 60 shirts
9) shirts
D) 1.35 shirts

Answers

B - 60 Shirts

15 percent is 3/20 of a whole, meaning that 1/20 of a whole would be 3. Then, multiply the 1/20 by its denominator.

3*20= 60

Your answer is B= 60 shirts

Wedding Venue A charges $25 per guest plus a rental fee of $1000.
Wedding Venue B charges $45 per guest plus a rental fee of $800. Which
equation can be used to find g, the number of guests attending the
wedding, so that the total charge at Wedding Venue A is equal to the total
charge at Wedding Venue B?
F 1000+45g = + 25g
G 1000 -25g = 800 -45g
H 1000 + 25g = 800+45g
J 1000 -25g = +45g

Answers

Answer:

Step-by-step explanation:

Venue A = 1000 + $25g

Venue B = 800 + $45g

PLZZZ HELP ME WITH THIS

You don't have to answer all the questions but plz if you can!!!

Answers

Answer:

First one is 3

Step-by-step explanation:

Question 3...............

Answers

Answer:

18 in.

Step-by-step explanation:

because if we divide

[tex](32 \times 18 \times 16 ) \div (24 \times 16 \times x = 18[/tex]

hope it helps you if you like answer please mark brainliest

Answer:

18 in

Step-by-step explanation:

WILL GIVE BRAINIEST PLEASE ONLY ANSWER WITH AN ANSWER Solve these to the nearest hundredth i need it urgently for class. Those you attach work will get brainiest over those who do not though you don't have to

Answers

Here is an explanation:

Answer

1 a=17 2 25 2/9 3 -7

4 5 6

7 8 9 10

by simplifying both sides of the equation, then isolating the variable.

Exact Form:

Step-by-step explanation:

Write the equation 4x − 5y = 20 in slope-intercept form.
pleaseeeeeeeeeeeeeee help me!!!!! i kinda get it but i need someone explain how to do it

Answers

Answer:

x= 5 /4y+5

Can i be mark brainliest

Step-by-step explanation:

solve for x.

4x−5y=20

Step 1: Add 5y to both sides.

4x−5y+5y=20+5y

4x=5y+20

Step 2: Divide both sides by 4.

5y+20

y+5

Answer:

x= 5 /4y+5

WILL GIVE BRAINLYST DUE IN 20 MINS

Answers

Answer:

1. x = -7

2. y = -1

Step-by-step explanation:

-3x - 5 = 16 add 5 to both sides

-3x = 21 divide -3 to both sides

x = -7

-4(y-2) = 12 distribute -4

-4y + 8 = 12 subtract 8 from both sides

-4y = 4 divide -4 to both sides

y = -1

SECOND PAGE

1. x = 9

2. y = -3

P(11,3) Permutations

Answers

Answer:

wdym

Step-by-step explanation:

If you give me more info I can help you!

(07.06) Which of the following graphs shows all the possible values for a number that is at least 6?

Number line with closed circle on 6 and shading to the left.
Number line with closed circle on 6 and shading to the right.
Number line with open circle on 6 and shading to the left.
Number line with open circle on 6 and shading to the right.

Answers

Answer:

Number line with closed circle on 6 and shading to the right.

Step-by-step explanation:

The graph that shows all the possible values for a number that is at least 6 is : Number line with closed circle on 6 and shading to the right.

What is a number line?

"It is a pictorial representation of numbers on a straight line."

For given question,

We need to find the number line that shows all the possible values for a number that is at least 6.

This means the possible values of a number are greater than and equal to 6.

We know that, on the number line open circles are used for numbers that are less than or greater than (< or >)

And the closed circles are used for numbers that are less than or equal to and greater than or equal to (≤ or ≥).

Since, we need to find the values of a number that are greater than and equal to 6.

So, there must be closed circle at 6 and for the values greater that 6 there must be shading to the right of 6.

Therefore, the graph that shows all the possible values for a number that is at least 6 is : Number line with closed circle on 6 and shading to the right.

Learn more about the number line here:

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find the measure of missing angles.
A=
B=
C=

Answers

Answer:

A = 140°

B = 40°

C = 140°

Step-by-step explanation:

1. Since we know that opposite angles are equal, b = 40°

2. Since we also know that the angle of a line adds to 180°,

a = 180° - 40°

So, 140°

Then repeat step 1 to find C through A.

Answer:

A; 140 degrees

B; 40 degrees

C; 140 degrees

Step-by-step explanation:

B. is the same as the given angle.

A and C are also the same angles.

We can either do the 360* or the 180* way.

I'll do them both.

180=40+A

subtract 40 from both sides.

140

A. and C are represented by 2x.

360=(40+40)+x

360=80+2x

280=2x

140

In both ways used, the answer is that A and C equal 140 and B equals 40

hi you guys this is my last question for today so can any one show love and answer this question plllllllllslssssssss ...........

janet has one rectangular shaped paper with a lenght of 11/12 foot and and width of 3/4 foot ......write n eqaution

how many sqaure feet and how much paper do she have

Answers

Answer:

11/12x 3/4=11/16

Step-by-step explanation:

I'm not 100% sure but hope this helps

Adding and subtracting polynomials
Add. Write your answers in standard form.
(4x + 9) + (3x - 5)

Answers

This should be right

Answer:

The answer is 7x+4

Step-by-step explanation:

If you need any help just ask me.

I recommend using math wa y calculator and I recommend any of the desmos calculators.

EXPERT HELP I'LL GIVE BRAINLIEST:

Answers

Answer:

Step-by-step explanation:

Its D because they Because they wouldnt just do one school they would do multipule school to see the amount and how much

Answer:

Your answer is A

Step-by-step explanation:

The answer is A because it says that the PTA members visited those stores to find the prices of the items on the student's supply list.

selected items refers to whats on the students supply list

hope this helps :)

Which expression is equivalent to −3(4+n)−(2n−5)

answer options
−n−7
−n−17
−5n−7
−5n−17

please give an explanation!

Answers

Answer:

-5n-17

Step-by-step explanation:

-3(4+n)-2n-5

-12-3n-2n-5

-5n-17

halp :}

96cm2
84cm2
108cm2
90cm2

Answers

It’s B.

Hope this helps

Which answer best shows all of the elements you need to consider when choosing an investment?

- risk and return
- liquidity, risk, time, and return
- return and liquidity
- time, risk, and liquidity

Answers

B. Liquidity, risk, time and return

The elements you need to consider when choosing an investment are liquidity, risk, time, and return.

What is an investment?

Investment refers to the act of allocating money or resources towards a specific project, asset, or venture with the expectation of generating profit or income in the future.

It involves sacrificing some present consumption or assets in exchange for the expectation of future benefits.

We have,

When choosing an investment, you need to consider the liquidity of the investment (how easily it can be bought or sold), the risk associated with the investment, the time horizon of the investment (how long you plan to hold it), and the expected return on the investment.

All of these elements are important to consider when making an investment decision.

Thus,

The elements you need to consider when choosing an investment are liquidity, risk, time, and return.

Learn more about investment here:

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