document.write( "Question 905279: 'Paula mixed two cups of sunflower seeds and three cups of raisins to make a snack for a hike. She figured that the mixture would provide her with 2,900 calories of food energy. Find the number of calories per cup of raisins if it is 400 less than the number of calories per cup of sun flower seeds.' \n" ); document.write( "
Algebra.Com's Answer #549120 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! 2*s+3r=2900 \n" ); document.write( "s-400=r \n" ); document.write( "s-r=400 \n" ); document.write( "2s+3r=2900 \n" ); document.write( "3s-3r=1200 \n" ); document.write( "5s=4100 \n" ); document.write( "s=820 \n" ); document.write( "r=420 \n" ); document.write( "check \n" ); document.write( "2*820+3*420=2900 \n" ); document.write( "1640+1260=2900 \n" ); document.write( "ok \n" ); document.write( " \n" ); document.write( " |