document.write( "Question 1044218: i have 4 one cent stamps 3 five cent stamps and 3 twenty five cent stamps. how many different combinations can be made with these stamps? Answer is 89 but whats the equation? Nick? 8th grade math. \n" ); document.write( "

Algebra.Com's Answer #659496 by ikleyn(52797) $\"\"$ $\"About$

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\n" ); document.write( "i have 4 one cent stamps 3 five cent stamps and 3 twenty five cent stamps. how many different combinations can be made
\n" ); document.write( "with these stamps? Answer is 89 but whats the equation? Nick? 8th grade math.
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\n" ); document.write( "\n" ); document.write( "Let me reformulate the problem in more clear way.\r
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\n" ); document.write( "\n" ); document.write( "\"I have 4 one-cent coins; 3 five-cents coins; and 3 twenty-five cent coins.
\n" ); document.write( "How many different sums can I combine using these coins?\"\r
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document.write( "1.  You can get the sums of 1 cent, 2 cents, 3 cents and 4 cents \r\n" );
document.write( "    by combining one 1-cent coin, two 1-cent coins, three 1-cent coins and four 1-cent coins, respectively.\r\n" );
document.write( "    4 different sums.\r\n" );
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document.write( "2.  You can get three sums of 5 cents, 10 cents, and 15 cents by combining . . . five-cent coins.\r\n" );
document.write( "    3 different sums.\r\n" );
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document.write( "3.  You can get three sums of 25 cents, 50 cents, and 75 cents by combining . . . twenty-five-cent coins.\r\n" );
document.write( "    3 different sums.\r\n" );
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document.write( "4.  4*3 = 12 different sums by combining 4 one-cent coins with 3 five-cent coins.\r\n" );
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document.write( "5.  4*3 = 12 different sums by combining 4 one-cent coins with 3 twenty-five-cent coins.\r\n" );
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document.write( "6.  3*3 = 9 different sums by combining 3 five-cent coins with 3 twenty-five-cent coins.\r\n" );
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document.write( "7.  4*3*3 = 36 different sums by combining 3 five-cent coins with 3 five-cent coins and 3 twenty-five-cent coins.\r\n" );
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document.write( "8. Now add all these combinations:\r\n" );
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document.write( "   4 + 3 + 3 + 12 + 12 + 9 + 36 = 79.\r\n" );
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document.write( "9. It is my answer.\r\n" );
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