document.write( "Question 311180: Two records and three tapes cost $31. Three records and two tapes cost $29. Find the cost of each record and each tape. \n" ); document.write( "
Algebra.Com's Answer #222552 by checkley77(12844)\"\" \"About 
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2R+3T=31 MUKTIPLY THIS EQUATION BY 3.
\n" ); document.write( "3R+2T=28 MULTIPLY THIS EQUATION BY -2 & ADD THEM.
\n" ); document.write( "6R+9T=93
\n" ); document.write( "-6R-4T=-56
\n" ); document.write( "---------------
\n" ); document.write( "5T=37
\n" ); document.write( "T=37/5
\n" ); document.write( "T=$7.40 FOR EACH TAPE.
\n" ); document.write( "2R+3*7.40=31
\n" ); document.write( "2R+22.20=31
\n" ); document.write( "2R=31-22.20
\n" ); document.write( "2R=8.8
\n" ); document.write( "R=8.8/2
\n" ); document.write( "R=$4.40 FOR EACH RECORD.
\n" ); document.write( "PROOF:
\n" ); document.write( "3*4.40+2*7.40=28
\n" ); document.write( "13.20+14.80=28
\n" ); document.write( "28=28
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