Question

Suppose that a certain fortunate person has a net worth of $76.0 billion ($ 7.60×1010 ). If her stock has a good year and gains $3.20 billion ( 3.20×109 ) in value, what is her new net worth? THE NEW NET WOTH IS 7.92×10^10 Suppose that this individual now decides to give one-eighth of a percent (0.125 % ) of her new net worth to charity. How many dollars are given to charity?

Answer 1

Find the 0.125% of 7.92x10^10: Multiply the amount by 0.125 and then divide into 100 or multiply the amount by 0.125/100

`\begin{gathered} (0.125)/(100)=1.25*10^(-3) \\ \\ 7.92*10^(10)*1.25*10^(-3)=(7.92*1.25)*10^(10-3)=9.9*10^7 \end{gathered}`

Then, $9.9x10^7 are given to charity