document.write( "Question 1119737: Julie, a police officer, has the following work pattern. She works 3 days, has 4 days off, then works 4 days, then has 3 days off, and then the pattern repeats. Assume that today is the first day of the work pattern. Answer the following questions showing the computations that support your answer.
\n" ); document.write( "a. Will Julie be working 30 days from today?
\n" ); document.write( "b. Julie’s niece is getting married 45 days from today. Will Julie have the day off?
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Algebra.Com's Answer #735327 by ikleyn(52790)\"\" \"About 
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\n" ); document.write( "Julie, a police officer, has the following work pattern. She works 3 days, has 4 days off, then works 4 days, then has 3 days off,
\n" ); document.write( "and then the pattern repeats. Assume that today is the first day of the work pattern. Answer the following questions
\n" ); document.write( "showing the computations that support your answer.\r
\n" ); document.write( "\n" ); document.write( "a. Will Julie be working 30 days from today?\r
\n" ); document.write( "\n" ); document.write( "b. Julie’s niece is getting married 45 days from today. Will Julie have the day off?
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\n" ); document.write( "\n" ); document.write( "Before answering question a), I would like to re-formulate it to make it more clear.\r
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\n" ); document.write( "\n" ); document.write( "So, my reformulation is THIS\r
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document.write( "    a.  Will the 30-th day from today be Julie's working day or the day off ?\r\n" );
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\n" ); document.write( "\n" ); document.write( "Now I am ready to answer.\r
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document.write( "    Notice that Julie's schedule is PERIODIC, and the period is exactly 2 weeks = 14 days.\r\n" );
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document.write( "    Thus the first day is the first day of the period;\r\n" );
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document.write( "    then the 15-th day is the first day of the second period;\r\n" );
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document.write( "    then 29-th day is the first day of the third period.\r\n" );
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document.write( "    Hence, 30-th day is the second day of the period, and it is her working day, according to the description.\r\n" );
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\n" ); document.write( "\n" ); document.write( "The method to solve this and similar problems is to identify the period and then move forward period after period.\r
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\n" ); document.write( "\n" ); document.write( "Or, in other words, to identify the period and throw away the integer number of periods. \r
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\n" ); document.write( "\n" ); document.write( "You can answer the next question b) using the same method and same idea.\r
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\n" ); document.write( "\n" ); document.write( "Please try to do it on your own.\r
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