document.write( "Question 319445: twelve people purchased supplies for a ten-day camping trip with the understanding that each of the twelve will get equal daily shares .they are then joined by three more people , but make no further purchases . how long will the supplies then last if the original daily share for each person is not changed ? \n" ); document.write( "
Algebra.Com's Answer #228773 by ankor@dixie-net.com(22740)\"\" \"About 
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twelve people purchased supplies for a ten-day camping trip with the
\n" ); document.write( " understanding that each of the twelve will get equal daily shares .
\n" ); document.write( "they are then joined by three more people , but make no further purchases .
\n" ); document.write( " how long will the supplies then last if the original daily share for each person is not changed ?
\n" ); document.write( ":
\n" ); document.write( "We can use a man-day ration (mdr) method
\n" ); document.write( "12 men, 10 days, require: 12 * 10 = 120 mdr's were purchased
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\n" ); document.write( "let d = no. of days for 15 men
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\n" ); document.write( "15d = 120
\n" ); document.write( "d = \"120%2F15\"
\n" ); document.write( "d = 8 days
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