document.write( "Question 200026: Can you help me set up the algebra equation for this word problem?
\n" ); document.write( "A stamp collection consists of 3, 8, and 15 cent stamps. The number of 8 cent stamps is one less than triple the number of 3 cent stamps. The number of 15 cent stamps is six less than the number of 8 cent stamps. The total value of all the stamps is $2.47. Find the number of 8 cent stamps in the collection.
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Algebra.Com's Answer #150390 by scott8148(6628)\"\" \"About 
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let t=\"number of 3 cent stamps, e=\"number of 8 cent stamps\" and f=\"number of 15 cent stamps\"\r
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\n" ); document.write( "\n" ); document.write( "\"The number of 8 cent stamps is one less than triple the number of 3 cent stamps\" ___ e = 3 t - 1
\n" ); document.write( "___ adding 1 and dividing by 3 ___ (e + 1) / 3 = t\r
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\n" ); document.write( "\n" ); document.write( "\"The number of 15 cent stamps is six less than the number of 8 cent stamps\" ___ f = e - 6\r
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\n" ); document.write( "\n" ); document.write( "\"The total value of all the stamps is $2.47\" ___ working in cents ___ 3 t + 8 e + 15 f = 247\r
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\n" ); document.write( "\n" ); document.write( "substituting ___ 3 ((e+1) / 3) + 8 e + 15 (e - 6) = 247
\n" ); document.write( "distributing ___ e + 1 + 8 e + 15 e - 90 = 247
\n" ); document.write( "___ 24 e = 336
\n" ); document.write( "___ e = 14
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