document.write( "Question 223193: Beth bought $0.40 stamps and $0.03 stamps at the post office. If she purchased 92 stamps at a total cost of $22, how many of each kind did she buy? \n" ); document.write( "
Algebra.Com's Answer #166932 by rfer(16322)\"\" \"About 
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x+y=92, x=92-y
\n" ); document.write( ".40x+.03y=22
\n" ); document.write( ".40(92-y)+.03y=22
\n" ); document.write( "36.8-.4y+.03y=22
\n" ); document.write( "-.37y=-14.8
\n" ); document.write( "y=-14.8/-.37
\n" ); document.write( "y=40 $.03 stamps
\n" ); document.write( "x=52 $.40 stamps
\n" ); document.write( "40*.03=1.20
\n" ); document.write( "52*.40=20.80
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