document.write( "Question 175293: Carol weighs three times as much as Sue. Together they weigh 160 pounds. Find the weight of each girl. \n" ); document.write( "
Algebra.Com's Answer #130400 by Mathtut(3670)\"\" \"About 
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let c be the weight of carol and s be the weight of sue
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\n" ); document.write( "c=3s......eq 1
\n" ); document.write( "c+s=160...eq 2
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\n" ); document.write( "take c's value of 3s from eq 1 and plug it into eq 2
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\n" ); document.write( "3s+s=160
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\n" ); document.write( "4s=160
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\n" ); document.write( "\"highlight%28s=40%29\"sues weight
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\n" ); document.write( "\"highlight%28c=3%2840%29=120%29\"carol's weight
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