document.write( "Question 371967: solving applications involving variation\r
\n" );
document.write( "\n" );
document.write( "simple interest. The simple interest I on an account varies jointly as the time t and the principal P. After one quarter (3 months) an $8000 principal earned $100 in interest. HOw much would a $10000 principal earn in 5 months?\r
\n" );
document.write( "\n" );
document.write( "Help, been working on this one problem for over an hour. \n" );
document.write( "
Algebra.Com's Answer #265137 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! I = k * t * P ___ the constant of proportionality would probably be the monthly interest rate\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "100 = k * 3 * 8000 ___ k = 1 / 240\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I = (1/240) * 5 * 10000 \n" ); document.write( " |