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)\"\" \"About 
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a = price of apple
\n" ); document.write( "b = price of banana\r
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\n" ); document.write( "\n" ); document.write( "3b + 2a = 2.90
\n" ); document.write( "2b + 5a = 3.75\r
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\n" ); document.write( "\n" ); document.write( "Multiply the first equation by 5 and the second equation by 2.\r
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\n" ); document.write( "\n" ); document.write( "15b + 10a = 14.50
\n" ); document.write( "-(4b + 10a = 7.50)
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\n" ); document.write( "11b = 7
\n" ); document.write( "b = 7/11 ---> a = 109/220\r
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\n" ); document.write( "\n" ); document.write( "5b + 2a = 459/110 = $4.17
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