Question

Can no one help me? I posted a question earlier I don't need answer I need to understand what I did wrong my thinking is that if I have a 2:1 ratio And my total is 99 that if I divide by 3 then I can get the amounts 33x2 is 66, then 33x1 is 33 so it would be 66:33. I used this same thinking to 2.6 x 10 to 21 power to get 8.6666666666 to 21 power. My science teacher says it's 1.3 x 10 to 21 power. I am so frustrated by this please please someone help me to understand what I'm doing wrong:(

Answer 1

the ratio of
2.6x10^21 : 1.3x10^21 = 2 : 1

The total of the two components would be

3.9x10^21

So if the question was:
" split the number 3.9x10^21 into two parts in the ratio of 2:1, yes, you would divide the 3.9x10^21 by 3 to get 1.3x10^21 , then proceed like you did for your example of 99