Words words words gah! what?

Out of 100 lb alloy you have 16 lb tin. To get to 18% tin, you must add x lb tin so that (16 + x)/(100 + x) = 18% = 0.18 16 + x = 18 + 0.18x 0.82x = 2 x = 2/0.82 = 2.439 lb..........Prood: 18.439/102.439 = 0.18 You add 2.439 lb to end up with 102.439 lb You add 2.439 x 820/102.439 lb to end up with 820 lb Since 2.439 = 2/0.82, this amount comes to 2,000/102.439 = 19.524 lb To the nearest tenth, that is 19.5 lb You can see the 820 was chosen to simplify the arithmetic.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.