document.write( "Question 1008629: A farmer can sell 50 bushels of beans and 100 bushels of corn for $810, or he can sell 20 bushels of beans and 205 bushels of corn for $868.50. What is the selling price of beans and corn per bushel? \n" ); document.write( "
Algebra.Com's Answer #624789 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! Call the prices of bushels of beans and corn, b and c. Then we have \n" ); document.write( "50b + 100c = 810 and \n" ); document.write( "20b + 205c = 868.5 \n" ); document.write( "Multiply the top one by 2 and the bottom by five and subtract them and get \n" ); document.write( "100b + 200c = 1620 \n" ); document.write( "-(100b + 1025c = 4342.5) \n" ); document.write( "-------------------------- \n" ); document.write( "-825c = -2722.5 \n" ); document.write( "c = $3.30 per bushel corn \n" ); document.write( "Substituting we get \n" ); document.write( "50b + 100(3.30) = 810 \n" ); document.write( "50b + 330 = 810 \n" ); document.write( "50b = 480 \n" ); document.write( "b = $9.60 per bushel beans \n" ); document.write( " |