document.write( "Question 971556: The number of days a school is in session for a year is 15 more than the number of days of vacation. How many days is the school in session out of 365 days in a year? \n" ); document.write( "
Algebra.Com's Answer #594276 by macston(5194)\"\" \"About 
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\n" ); document.write( "V=number of vacation days; S=number of school days=V+15 days
\n" ); document.write( "V+S=365 days Substitute for S.
\n" ); document.write( "V+(V+15 days)=365 days Subtract 15 days from each side.
\n" ); document.write( "2V=350 days Divide each side by 2
\n" ); document.write( "V=175 days There are 175 vacation days per year.
\n" ); document.write( "S=V+15 days=175 days+15 days=190 days
\n" ); document.write( "ANSWER: The school is in session 190 days a year.
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