document.write( "Question 977625: Larry paid 2520 for a watch, a radio, and a calculator. The watch cost 180 more than the radio and the radio cost 120 more than the calculator. How much did each item cost? \n" ); document.write( "
Algebra.Com's Answer #599180 by stanbon(75887)\"\" \"About 
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Larry paid 2520 for a watch, a radio, and a calculator. The watch cost 180 more than the radio and the radio cost 120 more than the calculator. How much did each item cost?
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\n" ); document.write( "\n" ); document.write( "Equatiions:
\n" ); document.write( "w + r + c = 2520
\n" ); document.write( "w = r + 180
\n" ); document.write( "r = c + 120
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\n" ); document.write( "Substitute for w and c and solve for \"r\"::
\n" ); document.write( "(r+180) + r + (r-120) = 2520
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\n" ); document.write( "3r + 60 = 2520
\n" ); document.write( "3r = 2460
\n" ); document.write( "r = 820 (cost of the radio)
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\n" ); document.write( "w = r + 180 = 1000 (cost of the watch)
\n" ); document.write( "c = r-120 = 700 (cost of the calculator)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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