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it is 9

A mole IS 6.02 x 10^23 atoms

in two moles there are   2 x 6.022x 10^23 atoms =  12.044 x 10^23 atoms = 1.2044 x 10^24 atoms

1) Restate: C - 6.6 = 18.5

2) Add the integers: 18.5 + 6.6 = (18 + 6 = 24) + (.5 + .6 = 1.1)

3) Simplify: 18.5 + 6.6 = 25.1

4) Finish: c = 25.1

Extra) Check: 25.1 - 6.6 = 18.5

C-(6.6) =18.5   add 6.6 to both sides

C= 25.1

Since there is no value of 'x' for which this is 'undefined' and there are no limits on 'y'

All x  

     From - infinity to + infinity

wow  u cant even figure that out

5.24  = 5 + 24/100  = 5 + 6/25

It depends on which infinity you're talking about, but it is almost always not applicable.

It depends on which infinity you're talking about, but it is almost always not applicable.

Answer(s)  here  :  http://web2.0calc.com/questions/harjit-surveyed-50-students-about-their-favourite-subject-in-school-eighteen-said-their-favourite-subject-was-math-15-said-it-was-science-and-20-stated#r2

P =  you work in a hospital 

Q  = you are a doctor

Converse

Q →  P     False.....not all doctors work in a hospiial

Inverse

not P  →  not Q    False.....same as before

Contrapositive

not Q  →  not P        False.....other people besides doctors work at a hospital

First find a common denominator     100 will do

3 3/10 =  33/10     or  330/100

330/100 - 2 23/100 =

330/100 - 223/100 = 107/100 =  1  7/100

333+33333=33999 lol

I just googled your question:

How often something happens divided by all outcomes. Example: Your team has won 9 games from a total of 12 games played: the Frequency of winning is 9. the Relative Frequency of winning is 9/12 = 75%

Of course the calculator can do this for you too      2 + 5556688 = 5556690

For some reason, I cannot see the other two answers posted to this question.

If 20 do not like math or science, that leaves 30 people

18 like math  15 like science    this is greater than 30 , so there is a 3 person overlap

so

A)  15 Like MATH ONLY  (18 - 3 overlap=15)

B)  3 (the overlap) Like MATH and SCIENCE

C)  50 - 20 ( 20 who do not like math OR science) leaves 30 who DO like math OR science

Assuming you mean:

6.5x + 4y = 2935

x + y = 450

The easiest way to solve this would be to multiply the second equation by -4

6.5x + 4y = 2935

-4x -4y = -1800

Add both equations

2.5x = 1135

x = 454

Plug x back into either equation

454 + y = 450

y = -4

Unless the question states it's ok to have a negative value, the system has no solution

I could be wrong, but unless you have anyone else to trust...>.>

infinity

See the following Venn diagram.....

 A) how many students only like math ? -  15

B) how many students like both math and science ?   - 3

C) how many students like math or science?   = 

n(M)  + n(S)  - n(M ∩ S)  =

18 + 15 - 3   =  30