Jim invested in ford motors. He gained 10 % of his investment, giving him $50. What was his initial investment? show work 4/10/2014 | Vicki from Panama City, FL | 2 Answers | 0 Votes Mark favorite Subscribe Comment
The wording is a little ambiguous. Is $50 what he earned from his investment ? If so, 10 % of what number is $50 ? 10%*n=$50 0.1*n=$50 n=50/(0.1) n=500/1 n=$500 invested at 10 % 4/10/2014 | Arthur D. Comment
Vicki, Let I_{0} be the initial investment then 50=I_{0}(1+.1) so solving for I_{0} gives I_{0}=50/(1.1)=45.45. So he must have started with $45.45. Jim 4/10/2014 | Jim S. Comment