document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1015689>Question 1015689</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Joe created a metal containing 40% platinum by combining two other metals. One of these other metals weighed 12 lb. and contained 45% platinum. If the other weighed 3 lb. then what percent of it was platinum? </SPAN>\n" );
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document.write( "x=percentage of other metal<BR>\n" );
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document.write( "(0.45)(12lbs)+x(3lbs)=(0.40)(15lbs)<BR>\n" );
document.write( "5.4lbs+3xlbs=6.0lbs . Subtract 5.4 lbs from each side.<BR>\n" );
document.write( "3xlbs=0.6lbs . Divide each side by 3 lbs<BR>\n" );
document.write( "x=0.2<BR>\n" );
document.write( ".<BR>\n" );
document.write( "ANSWER: The other metal was 20% platinum.<BR>\n" );
document.write( ".<BR>\n" );
document.write( " </SPAN>\n" );
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