document.write( "Question 821197: Jonathan can complete a project in 15 days and Stephanie can do the same project in 45 days. Jonathan worked on the project alone for 3 days before Stephanie joined him. How many days did Stephanie work on the project until it was done? PLEASE ANSWER ASAP \n" ); document.write( "
Algebra.Com's Answer #493946 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! in three days Jon completed 3/15=1/5 of the job. \n" ); document.write( "3/15+x/15+x/45=1 \n" ); document.write( "3x/45+x/45=12/15 \n" ); document.write( "4x/45=4/5 \n" ); document.write( "x/9=1 \n" ); document.write( "x=9 they worked 9 days together\r \n" ); document.write( "\n" ); document.write( "check \n" ); document.write( "3/15+9/15+9/45=1 \n" ); document.write( "3/15+9/15+3/15=1 \n" ); document.write( "15/15=1 \n" ); document.write( "ok\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |