document.write( "Question 972602: Joe bought 3 bananas and 2 apples for $2.90. Bob bought 2 bananas plus 5 apples for $3.75. How much does it cost for 5 bananas plus 2 apples. \n" ); document.write( "
Algebra.Com's Answer #808006 by CubeyThePenguin(3113)![]() ![]() You can put this solution on YOUR website! a = price of apple \n" ); document.write( "b = price of banana\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3b + 2a = 2.90 \n" ); document.write( "2b + 5a = 3.75\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Multiply the first equation by 5 and the second equation by 2.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "15b + 10a = 14.50 \n" ); document.write( "-(4b + 10a = 7.50) \n" ); document.write( "-------------------- \n" ); document.write( "11b = 7 \n" ); document.write( "b = 7/11 ---> a = 109/220\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "5b + 2a = 459/110 = $4.17 \n" ); document.write( " |