document.write( "Question 133752: A math 109 student must solve 270 problems for her college of the air class. If she solves 15 problems in 40 minutes then at this rate, how many hours will it take her to complete all 270 problems? \n" ); document.write( "
Algebra.Com's Answer #97866 by SoOoDumb(14)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "x = number of minutes \n" ); document.write( "Cross multiply \n" ); document.write( "15x=40*270 \n" ); document.write( "15x=10800 \n" ); document.write( "Divide both sides by 15 \n" ); document.write( "x=720 \n" ); document.write( "720/60=12 \n" ); document.write( "It will take them 12 hours to finnish all 270 problems \n" ); document.write( " |