Mathematics Middle School

The following table shows the chemical makeup of one mole (a unit of measure commonly used in chemistry) of acetone and the approximate mass of a mole of each compound element.

Oxygen makes up what percent of the mass of one mole of acetone? Round to the nearest whole percent.

The Following Table Shows The Chemical Makeup Of One Mole (a Unit Of Measure Commonly Used In Chemistry)

Answers

Answer 1

Answer:

55%

Step-by-step explanation:

You add all the grams and divide 16

16/29=0.551

then the nearest whole percent would be

55%

Related Questions

brody\ made\ some\ candles\ that\ weighed\ \frac{1}{4}\ of\ a\ pound\ per\ candle.\ He\ shipped\ them\ in\ a\ box\ that\ weighed\ 51\ pound.\ The\ total\ weight\ of\ the\ box\ filled\ with\ candles\ was\ 60.75\ pounds.\ How\ many\ candles\ did\ brody\ ship\ in\ the\ box?

Answers

Answer:39

im not adding an explanation so just use this

please answer this!

Answers

Answer:

10:45 was his departure time

Step-by-step explanation:

Find the actual travel time:

60%2F40 = 1.5 hrs, 1 hr 30 min, which made him 15 min late, therefore

he arrived 12:15

:

12:15 - 1.30 = 10:45 was his departure time

Answer: The answer is 10:45

Melinda is painting part of a mural. The diagram shows the shape she will paint. A small can of paint covers 25 sq ft. Can Melinda complete her part of the mural with just one can of paint

Answers

Answer:

No.

Step-by-step explanation:

3x4x2=24

2x2=4

24+4=28

25-28=-3

Show your thinking or explain why u chose your answer
The means and mean absolute deviations of the amount of rain that fell each day in a local city, last week and this week, are shown below.

Show your thinking or explain why u chose your answer
Which expression compares the difference of the two means to this week’s mean absolute deviation?
A. 0.8/0.7
B.2.7/0.7
C.0.8/0.5
D.2.7/2.5

Answers

Answer: B. If this is not correct I am very deerly sorry

Step-by-step explanation:

i think the answer is B. 2.7/0.7

Keith earns $38.00 in 3 hours. How much would he earn in 10 hours?

a 76
b 101.33
c. 121.67
d. 126.67

Answers

Answer: you would do 38.00 divided by 3 then you would get 126 as your answer

Answer:

D. $126.67/hour

Step-by-step explanation:

1. Divide 38 by 3

12.6666666667 (repeating decimal)

2. Multiply by 10

126.6666666667 (repeating decimal)

3. Round to the nearest hundredth

126.67

what is the surface area

Answers

Answer:

Step-by-step explanation:

8x8= 64 i love ixl keep it up

ANSWER BEFORE 2/9!!

Garret was figuring out his monthly finances to see how much money he had. He started the month $163 in debt. He makes $15.50 an hour and works 40 hours a week. (Assume there are 4 weeks in a month). Every month he was to pay rent, his phone bill, car insurance, and a car payment. Rent is $1,000, his phone bill is $130, car insurance is $125, and his car payment is $350. Each week he spends $55 on groceries and $67 on has. He also owed his friend $550 that he paid. How much money does he have left in his account?

Answers

Answer: $1,900

Step-by-step explanation:

answer : 1,900
(i need it to be 20 characters)

Helppp. 15 points for this and i'll mark as brainlist!!

Fill in the missing blanks of the shape net.

Answers

According to the information in the image, it can be inferred that the length of these would be 6, 8, 6, 8.

How to identify the length of the sides of this figure?

To identify the length of the sides of this figure we must take into account the lengths shown in the model on the left. In this case we know that this figure is 6 high, 2 long and 8 wide.

Then the lengths that have an intermediate size would be 6, the longest lengths would be 8 and the shortest would be 2. From the above we can infer that the squares on the right side of the figure would be filled as follows: up: 6, 8, 6, 8.

Learn more about side length in: https://brainly.com/question/29086634

#SPJ1

question on image pls answer fast my assignment is past due!!!!!!!!

Answers

Answer: 5x + 9.5

Step-by-step explanation:

2.5(4x+5) - 2(2.5x+1.5) =

10x + 12.5 - 5x - 3 =

5x + 9.5

Answer:

??????

Step-by-step explanation:

I need to find whether its a adjacent angle or vertical on both

Answers

1.) is a vertical angle; X=113

2.) is a adjacent angle; X=28

Answer:

1.  Vertical angles

x = 113°

2. Adjacent angles

x = 28

Step-by-step explanation:

1)

Vertical angles have the same measurement.  They are across from one another.

2) Adjacent angles are next to each other.

These angles are complementary.  That means that together they add to 90

56 + x + 6 = 90  Combine like terms

62 + x = 90  Subtract 62 from both sides

62 - 62 + x = 90 - 62

x = 28

PLease help me you guys!

Answers

Answer:

25 is the outlier.

Step-by-step explanation:

Outliers are extreme values that stand out greatly from the overall pattern of values in a dataset or graph. In this case 25 is an outlier since it's the extreme value that is way higher than all the other values. Drawing it out, you can get a better picture:

Answer:

25

Step-by-step explanation:

PLEASE ANSWER I WILL GIVE BRAINLIEST TO THE BEST ANSWER

Answers

Answer:

10b−60

Step-by-step explanation:

10(b−6)=

Use the distributive property to multiply 10 by b−6.

10b−60

Answer: (10b-60)

Step-by-step explanation:

you will mutiply the 10 across everything in the Parentheses so if the eqation is

10(b - 6)=x

you do 10×6 and -6×10

which gives you

10b-60=X

If [tex](x-\frac{1}{x} ) = 9[/tex] and [tex](x^2-\frac{1}{x^2} ) = 53[/tex], then find the value of [tex](x-\frac{1}{x} )[/tex].


Please answer asap!

Answers

Answer:

9

Step-by-step explanation:

It says it in the question (x - 1/x) = 9

The answer to the problem is 9

Question: Memphis is cooking veggie burgers. Two veggie burgers fit across the square skillet as shown. Memphis wants to know the area of the skillet that is left uncovered by the veggie burgers.
Info:
R=2 in. (Radius of each veggie burger)
25.13 in. (Total area of veggie burgers)
Area left uncovered=? (Answer I need help on)

Answers

Answer:

Step-by-step explanation: lxw so 25.13x2

Answer:

25.13x2

Step-by-step explanation:

which expression is equivalent to 5x+10y-15

Answers

Explanation: Factor out 5 from the expression.

Answer: 5(x+2y-3)

Answer:

5 (x+5y-3)

Step-by-step explanation:I used the distributive property

PLEASE ANSWER I WILL GIVE BRAINLIEST TO THE BEST ANSWER

Answers

Answer: X=6

Step-by-step explanation:

If you are looking for X the answe would be 6

you get the GCF (16) divided the 96 by 16 and get the answer 6 equals X

(16x+96) GCF 16

÷16   ÷16

x=6

Answer:this could be wrong but i got 3.13016916...

Step-by-step explanation:

(16x+96)

[tex]\sqrt{16\\}[/tex] =4

[tex]\sqrt[4]{96}[/tex] =3.13016916...

i could be wrong but yea hope this helps

40 B POINTS AND BRAINLEIST. PLS HELP

Answers

Answer:

below

Step-by-step explanation:

Just add all of the sides

Bottom    11 x 7                                = 77 in^2

Top(s)      11 x 7                                =77 in^2

TWO sides     2   x  ( 6x6 + 1 x 5)   = 82 in^2

Front and back   2   x (6x7)            = 84 in^2

                                     Total         320 in^2

320 is your answer
Explanation- 11 x 7 = 77
11 • 7 = 77
Two sides - 82
Two sides - 84
Total - 320

(Give your answer in the nearest dollar)

20% of $54

$____

Answers

Total(Bill+Tip)

You need to pay

$65.00

Jess is having a cake so she buys cake mix and decorate the cake with frosting just must been $62 baking pans and $2.50 for each box cake mix eggs and oil complete the table giving the total cost just will spend to meet each specific number of cakes

Number of cakes
15, 30, 50

A. 15 cakes cost $37.50. 30 cakes cost $75. 50 gigs cost $125
B. 15 cakes cost $99.50 30 gigs cost $137. 50 gigs cost $187
C. 15 cakes cost $99.50. There any cakes cost $75. 50 gigs cost $125

Answers

The correct option is B.

Here's the breakdown of the cost calculation:

15 cakes:

Cake mix: $2.50 x 15 = $37.50

Baking pans: $62

Total: $37.50 + $62 = $99.50

30 cakes:

Cake mix: $2.50 x 30 = $75

Baking pans: $62

Total: $75 + $62 = $137

50 cakes:

Cake mix: $2.50 x 50 = $125

Baking pans: $62

Total: $125 + $62 = $187

So the correct option is B

They’re perfect answer is the person above is correct if my calculations are correct, the person above is correct with the number of Sumers

please answer this!

Answers

April---------------------

Answer:

Friday

Step-by-step explanation:

Given 3rd of the month is WednesdayThe total number of days between the 3rd to 26th of the same month is 23 days i.e 3 weeks + 2 odd daysTherefore, Wednesday + 2  = FridaySo, the 26th of the same month is Friday hence, "Friday" is the correct answer.

PLEASEE ANSWER ASAPP!!
The system of linear equations −3x + 2y = −6 and y equals negative one half times x plus 4 is graphed on a coordinate plane. Approximate the solution to the system.

Answers

Answer: the solution to the system of equations is approximately (3.5, 2.25)

Step-by-step explanation:

The first equation can be rewritten in the form y = mx + b, where m is the slope and b is the y-intercept, by solving for y:

-3x + 2y = -6

2y = 3x + 6

y = (3/2)x + 3

The second equation already has the form y = mx + b:

y = -1/2 x + 4

Now that both equations are in the form y = mx + b, we can graph them on a coordinate plane and find the point at which they intersect, which is the solution to the system. The x and y coordinates of the intersection point are the values that satisfy both equations simultaneously.

The x and y values of the intersection point can be found either by solving for x and y or by using the method of substitution.

By using substitution, we can substitute the value of y from the second equation into the first equation to solve for x:

-3x + 2(-1/2 x + 4) = -6

-3x + (-x + 8) = -6

-4x + 8 = -6

-4x = -14

x = 3.5

Now that we have found x, we can substitute it into either equation to find y:

y = -1/2 x + 4

y = -1/2 * 3.5 + 4

y = 2.25

So, the solution to the system of equations is approximately (3.5, 2.25).

What can you do to get 2x alone on the left side of the equation? Fill in the blanks below to show what you would do. Then, simplify the equation.

equation
82.5 + 8(0.25x) = 338.5

Answers

Answer: 82.5+8(0.25x)+2x=338.5

Subtract 82.5 on both side

Multiply 8 and 0.25 then add 2x

4x=338.5-82.5

Divide by 4

X=64

Step-by-step explanation:

x=128

Subtract both sides by 82.5




Divide both sides by 2

2x/2 = 256/2

X=128

Answer?: A line that includes the points (9, v) and (10, -3) has a slope of 7. What is the value of v?

Answers

Answer:j = -15 Step-by-step explanation:

Given that,A line that includes the points (-9,-5) and (-10, j) has a slope of -10.The slope of a line for which two points are given is :So, the value of j is equal to -15.

Hope this helped :]

Answer=17 because yess I did the math on paper

Your teacher wants to put a wallpaper border around the classroom where the ceiling meets the walls. How many feet of border should be purchased? (reminder class size 36x 42) (*Hint: Perimeter)

Answers

Answer:

156

Step-by-step explanation:

You would want to know the perimeter of the classroom. To get the perimeter, you need to know the width and the length of the classroom. Since the classroom area is 36*42, that means all you need to do is add 36 and 42 together, then time it by 2. 36+42=78 78*2=156

156 is your answer
If your teacher wants to put a wallpaper border around the classroom where the ceiling meets the walls. And the class size is 36 x 42 it’s PERIMETER so the answer is 156

Holly invests £500 for 4 years in a bank account. The account pays simple interest holly has got at a rate of 1.5% per year. Work out the total amount of interest Holly has got at the end of 4 years.

Answers

6% interest gained over 4 years.

convert 1 4/5 into a fraction

Answers

Answer:

The answer is 1.8

The answer is 6/5, (1) is a whole number so you would convert it to the top which makes 4/5->6/5

rewrite without parenthesis 12m-(2+9m)

Answers

Answer:

3m-2

Step-by-step explanation:

12m-1(2+9m)

12m-2-9m

3m-2

3m-2 is the solution for that

the line plot shows the amount of milk that was in each students glass at a party.How much milk would be in each glass if the total amount in all of the glasses were redistributed equally?

I need this quickly please help ty!

Answers

Answer:

5 Pints total

Each person gets 5 pints

Step-by-step explanation:

There is a 9/10 and a 1/10 which makes 1

There are 2 2/10 and 2 8/10 which makes 2

There is a 4/10 and a 6/10 which makes 1

There are 2 5/10 which makes 1

This adds up to a total of 5 pints.

If the question is how many pints are in each drink for them all to be equal it would be 5/10 or 1/2 pints each because there are 5 pints and 10 people with milk.

what is true and what is false. Explain how you figured it out.

Answers

Answer:

A is falseB is trueC is falseD is trueE is trueF is false

Step-by-step explanation:

For all of these, it involves the exterior angle theorem.

It states that the sum of the two opposite interior angles (not the adjacent/supplementary) is equal to the corresponding exterior angle. You can rearrange the equation of the others to satisfy this rule.

Let me know if you want me to go into detail for each one.

Which of the following functions is linear?

Question 1 options:

y = x2 + 4x − 12


y = | x + 2 |


y = x3


y = 2x + 1

Answers

Answer: D

Step-by-step explanation:

Can't be A or D because they have exponents which makes it an exponential function and it can't be B either because it has a function within an absolute value.

Answer: y = 2x + 1

Step-by-step explanation:

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