document.write( "Question 604527: the cost of 30 chairs and 20 tables is 8500.what is the total cost of 117 chairs and 78 table???? \n" ); document.write( "
Algebra.Com's Answer #381247 by flame8855(424)\"\" \"About 
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30c + 20t = 8500
\n" ); document.write( "117/30 = 3.9
\n" ); document.write( "78/20 = 3.9
\n" ); document.write( "so 117c+78c= 8500(3.9)
\n" ); document.write( "33150
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