document.write( "Question 1110704: Bella Sandino made a $600 loan to her friend, Sadie, at 11%. Sadie paid back the loan with interest of $19.25. How long in days was the loan outstanding? (Use 360 days a year.) \n" ); document.write( "
Algebra.Com's Answer #725726 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! She paid back $619.25 \n" ); document.write( "619.25=600(1+r/n)=600(1+.11n/360); when n=360, the parentheses will equal 1.11 \n" ); document.write( "619.25/600=1+.11n/360 \n" ); document.write( "1.03208=1+.11/n \n" ); document.write( ".03208=.11n/360 \n" ); document.write( ".11n=360*.03208=11.5488 \n" ); document.write( "n=104.99 days or 105 days ANSWER \n" ); document.write( "This is between a 1/4 and 1/3 of a year, and 1 years' interest is $66, so the answer should be between $16.50 and $22. \n" ); document.write( " \n" ); document.write( " |