document.write( "Question 1062657: Ana can finish a certain job in 10 hours. Together, Ana and Nina can finish the same job in 3 hours. How many hours can Nina finish the job alone? \n" ); document.write( "
Algebra.Com's Answer #677622 by josgarithmetic(39630) ![]() You can put this solution on YOUR website! Let x be how many hours Nina alone can do the job. \n" ); document.write( " |