document.write( "Question 1206283: Hi, not sure how to tackle the working out for this question: I take a tablet every 10 days. If I take my first tablet on Monday and have 25 tablets, on what day will I take the last tablet. The answer my teacher gave is a Wednesday. Should I use modular arithmetic to solve, very stuck. Thank you. \n" ); document.write( "
Algebra.Com's Answer #843608 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
i did it this way.
\n" ); document.write( "building up from 1 tablet to 2 tablets to 3 tablets.
\n" ); document.write( "monday = day 1 of the week.
\n" ); document.write( "tuesday = day 2 of the week.
\n" ); document.write( "........
\n" ); document.write( "sunday = day 7 of the week.\r
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\n" ); document.write( "\n" ); document.write( "one 10 day period = 10 days.
\n" ); document.write( "divide that by 7 and you get one 7 day period plus 3 days more.
\n" ); document.write( "day 3 = wednesday.
\n" ); document.write( "that was confirmed to be good.\r
\n" ); document.write( "\n" ); document.write( "two 10 day periods = 20 days.
\n" ); document.write( "divide that by 7 and you get two 7 day periods plus 6 days more.
\n" ); document.write( "day 6 would be saturday.
\n" ); document.write( "that was confirmed to be good.\r
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\n" ); document.write( "\n" ); document.write( "three 10 day periods = 30 days.
\n" ); document.write( "divide that by 7 and you get four 7 day periods plus 2 days more.
\n" ); document.write( "day 2 would be tuesday.
\n" ); document.write( "that was confirmed to be good.\r
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\n" ); document.write( "\n" ); document.write( "four 10 day periods = 40 days.
\n" ); document.write( "divide that by 7 and you get five 7 day periods plus 5 days more.
\n" ); document.write( "day 5 would be friday.\r
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\n" ); document.write( "\n" ); document.write( "i confirmed with a module calculator that these results are accurate.\r
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\n" ); document.write( "\n" ); document.write( "extending this to 25 ten day periods, you should get 250 / 7 = 35 seven day periods with 5 days left over.
\n" ); document.write( "day 5 would be friday.\r
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\n" ); document.write( "\n" ); document.write( "teacher's answer does not appear to be right.
\n" ); document.write( "the solution looks like it's friday.\r
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\n" ); document.write( "\n" ); document.write( "here'e the modulo calculator i used.\r
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\n" ); document.write( "\n" ); document.write( "https://www.calculatorsoup.com/calculators/math/modulo-calculator.php\r
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