document.write( "Question 504967: Professor McGonagall gave Hermione one nickel on Monday. On Tuesday, she gave Hermione five nickels. On Wednesday, she gave Hermione 14 nickels and on Thursday, she gave Hermione 30 nickels. Professor McGonagall told Hermione that if she could figure out the pattern and tell her how many nickels she would get on the tenth day, Hermione could have them all on Friday.
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\n" ); document.write( "How many nickels should Hermione tell Professor McGonagall she will get on the tenth day?
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Algebra.Com's Answer #339753 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
If I call the day number \"d\", then
\n" ); document.write( "when \"+d+=+1\", number of nickels is \"+0+%2B+d%5E2+\" = 1
\n" ); document.write( "when \"+d+=+2+\", number of nickels is \"+1+%2B+d%5E2+\" = 5
\n" ); document.write( "when \"+d+=+3+\", number of nickels is \"+5+%2B+d%5E2+\" = 14
\n" ); document.write( "when \"+d+=+4+\", number of nickels is \"+14+%2B+d%5E2+\" = 30
\n" ); document.write( "So, on any given day, \"d\", she gets the number that she got
\n" ); document.write( "the number she got the previous day plus \"+d%5E2+\" more.
\n" ); document.write( "On the 10th day, she got
\n" ); document.write( "\"10%5E2\" + number on the previous day
\n" ); document.write( "On the 9th day, she got
\n" ); document.write( "\"9%5E2\" + number on previous day
\n" ); document.write( "On the 8th day, she got
\n" ); document.write( "\"8%5E2\" + number on previous day
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\n" ); document.write( "Notice this is
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\n" ); document.write( "\"+100+%2B+81+%2B+64+%2B+49+%2B+36+%2B+25+%2B+16+%2B+9+%2B+4+%2B+1+=+385\"\r
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