document.write( "Question 1102166: You sign up to volunteer every fifth Sunday when one occurs. If you choose a typical thirty one day month, what is the probability that you will be needed on a fifth Sunday? Write your probability in a simplified fraction. \n" ); document.write( "

Algebra.Com's Answer #717027 by Lightning_Fast(78) $\"\"$ $\"About$

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Well, assuming the thirty day month starts on a Sunday, there will be four Sundays.\r
\n" ); document.write( "\n" ); document.write( "When you say every other Sunday, you are skipping one sunday, then volunteering one sunday, then skipping one sunday, then volunteering on sunday. You are volunteering for 2/4 sundays, or 1/2.\r
\n" ); document.write( "\n" ); document.write( "How about skipping every third Sunday? You skip one Sunday, then skip again, then volunteer. Here, you Volunteer for 1/3 Sunday.\r
\n" ); document.write( "\n" ); document.write( "When you volunteer for every fifth sunday, you will have a 1/5 chance of going to volunteer per sunday, or per week.\r
\n" ); document.write( "\n" ); document.write( "We can write this as a ratio.\r
\n" ); document.write( "\n" ); document.write( " $\"%28%281%2F5%29+chance+of+volunteering%29+%2F+%28Per+1+Week%29\"$ \r
\n" ); document.write( "\n" ); document.write( "But we have four weeks, or four sundays in a month, so we multiply the numerator and the denominator by four and obtain.\r
\n" ); document.write( "\n" ); document.write( " $\"%28%284%2F5%29+chance+of+volunteering%29+%2F+%28Per+4+weeks%29\"$ \r
\n" ); document.write( "\n" ); document.write( "Your provability is 4/5 chance of volunteering for any given month. \n" ); document.write( "

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