document.write( "Question 462282: I have 4 three cent stamps and 3 five cent stamps. Using one or more of these stamps, how many different amounts of postage can I make? \n" ); document.write( "
Algebra.Com's Answer #316924 by MathLover1(20849)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "1, 2, 3, or 4 3c stamps are 3c, 6c, 9c, or 12c.
\n" ); document.write( "That is \"4\" sets of postage.\r
\n" ); document.write( "\n" ); document.write( "If one 5c stamp is included, we can add 0, 1, 2, 3, or 4 3c stamps to it.
\n" ); document.write( "That is \"5\" sets of postage.\r
\n" ); document.write( "\n" ); document.write( "If two 5c stamps are included, we can still add 0, 1, 2, 3, or 4 3c stamps to it.
\n" ); document.write( "That is another \"5\" sets of postage.\r
\n" ); document.write( "\n" ); document.write( "If three 5c stamps are used, once again we can add 0, 1, 2, 3 or 4 3c stams to it.
\n" ); document.write( "Tat is one more \"5\" sets of postage.\r
\n" ); document.write( "\n" ); document.write( "The total number of sets of postage are \"4%2B5%2B5%2B5+=+19\".\r
\n" ); document.write( "\n" ); document.write( "Note that the number is also \"%284%2B1%29%283%2B1%29+-+1+=+5%2A4+-+1+=+20+-+1+=+19\".\r
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\n" ); document.write( "\n" ); document.write( "The value of the total stamps is
\n" ); document.write( " 0---- 3---- 6---- 9---- 12
\n" ); document.write( "0---- 0---- 3---- 6---- 9---- 12
\n" ); document.write( "5---- 5---- 8---- 11---- 14---- 17
\n" ); document.write( "10---- 10---- 13---- 16---- 19---- 22
\n" ); document.write( "15---- 15---- 18---- 21---- 24---- 27\r
\n" ); document.write( "\n" ); document.write( "where the top is the value of the 3 cent stamps and the left side is the value of the 5 cent stamps.\r
\n" ); document.write( "\n" ); document.write( "In the middle are the \"20\" values, all of them unique.
\n" ); document.write( "Not that the upper left value is 0, which means there are no stamps.
\n" ); document.write( "That one has to be discarded, since there is no such thing as sending a free letter.
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