document.write( "Question 19986: A family purchased 7 tickets for a train ride. The total cost was $27. If adult tickets were $5, and children's tickets were $3, find the number of each type of ticket purchased. \n" ); document.write( "
Algebra.Com's Answer #9646 by Paul(988)![]() ![]() ![]() You can put this solution on YOUR website! Let x be the adults tickets \n" ); document.write( "Let y be the childern tickets\r \n" ); document.write( "\n" ); document.write( "x+y=7 \n" ); document.write( "y=7-x \n" ); document.write( "5(x)+3(y)=27 (substitute) \n" ); document.write( "5x+3(7-x)=27 \n" ); document.write( "5x+21-3x=27 \n" ); document.write( "2x+21-21=27-21 \n" ); document.write( "2x=6 \n" ); document.write( " \n" ); document.write( "x=3 \n" ); document.write( "7-3=4 \n" ); document.write( "Therefore there were 3 adults ticket purchased and 4 childer tickets purchased. \n" ); document.write( " |