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2+2+9+6+3+65*4 = 282

OR

2+2+9+6+3+65+4 = 91

\(2.225=2 {225 \over1000}\)

Of course, this can be simplified.

\(2.225=2{45 \over200}\)

But STILL it can be simplified.

\(2.225= 2{9\over40}\)

I don't believe it can be simplified any further than that.

So, in simplest form,  \(2.225=2{9\over40}\)

Use the "caret" (^) symbol and type in a number greater than 3.

Such as: \(2^4, 3^5, 4^6, etc.\)

Hydrogen and oxygen combine in a ratio 1:8 by mass.Predict the ratio in terms of number of particles

Since 1 mole of H = 1 gram=6.022 X 10^23 atoms, and since 1 mole of O=~16 grams=6.022 X 10^23 atoms, therefore a ratio of 1:8 by mass=6.022 X 10^23:[6.022 X 10^23/2=3.011 X 10^23]; OR,

1:8 by mass =6.022E23:3.011E23 in terms of number of particles.

Well.....that's certainly a cornucopia of solutions.....!!!!

Dividing a fraction is pretty easy, let's use an example problem. 

\({2 \over3}/{4 \over5}=x \)

Let's find x.

\({2 \over3}/{4 \over5}=x \)

Flip the second fraction and multiply.

\({2 \over3}*{5 \over4}=x\)

\({10 \over12}=x\)

So, \({2 \over3}/{4 \over5}={10 \over12}\)

I think by \over they ment /, as in a fraction.

Melody, I wish for none of this to be offensive, but I think you have done your maths incorrectly. 3(x+4)=3x+12, not 12x+12. Guest, 4 3/5=4.6, or four and three-fifths, not 4*(3/5)(in words four times, in parentheses, three divided by five.)

It's 5/2 or 2,5

3(x+4) - 12 = 4 3\ 5 + 2x

3x+12=4 3/5+2x

x+12=4 3/5

x=-7 2/5

Correct! A country has land inside of it's borders, such as Canada, America, Mexico, China, Japan, etc. The list goes on and on!

3(x+4) - 12 = {4 3\over 5} + 2x

\(3(x+4) - 12 = {4 3\over 5} + 2x\\ 12x+12 - 12 = {4 3\over 5} + 2x\\ 12x = {4 3\over 5} + 2x\\ 12x-2x = {4 3\over 5} + 2x-2x\\ 10x = {4 3\over 5} \\ x={4 3\over {5*10}} \\ x={4 3\over {50}} \\\)

I do not remember seeing that \over command in LaTex before.  Thanks.

Now I have just got to remember if :)

Mmmmm........have you ever thought.....it might not be the calculator  ???

Please voice your opinion somewhere else, or tell us how we can fix it for you.

Thanks, Clara......welcome aboard....!!!!

Btw, 4 3/5=23/5

3(x+4)-12=4.6+2x = x=(23/5)

WORK

3(x+4)-12=4 3/5+2x

3x+12-12=4 3/5+2x

3x=2x+4 3/5

x=4 3/5

Perhaps this answers your answer...

There's 1 hydrogen per 8 oxygen. 

I hope that helps!!!

I've no idea, professor.

Mmm, I am not into chemistry but

http://www.mikeblaber.org/oldwine/chm1045/notes/Stoich/Weights/Stoich03.htm

2 Hydrogen +1 oxygen = water :)

I am not sure if that answers your question and i think you want someone to explain it better anywasy.  It is a pity that Sevenup is not about :)   

10x8=80

The fraction button is the division button. if you click the divide sign, it will pull up a /. a fraction is a way of dividing. and please don't use all caps. that is yelling and impolite.

2*10⁰