document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1034763>Question 1034763</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hailie bought 30 stamps for $41.94. Some of them were $3.00 stamps and the rest were 33-cent stamps. How many of each kind did she buy? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #649432 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=649432\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the $3 stamps be x and $0.33 stamps be y<BR>\n" );
document.write( "x+y = 30 subtract y from both sides:<BR>\n" );
document.write( "x = 30-y<BR>\n" );
document.write( "We also have the following:<BR>\n" );
document.write( "3x+0.33y = 41.94 substitute for x:<BR>\n" );
document.write( "3(30-y)+0.33y = 41.94<BR>\n" );
document.write( "90-3y+0.33y = 41.94<BR>\n" );
document.write( "-2.67y = -48.06 Divide both sides by -2.67 and remember -/- = +<BR>\n" );
document.write( "y = 18 stamps of 33 cents and<BR>\n" );
document.write( "30-18 = 12 stamps of $3<BR>\n" );
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document.write( "Check:<BR>\n" );
document.write( "18*0.33 = 5.94<BR>\n" );
document.write( "12*3 = 36<BR>\n" );
document.write( "5.94+36 = 41.94 Correct </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );