document.write( "Question 465279: On a train excursion trip, the adult fare was $12.00 and the child's fare was $6.00. The number of passengers was 400, an the total revenue for the trip was $4020. How many adults were there on the train? \n" ); document.write( "
Algebra.Com's Answer #318836 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi,
\n" ); document.write( "Let x and (400-x) represent the number of adult and youth tickets respectively
\n" ); document.write( "Question states***
\n" ); document.write( " $12x + $6(400-x)= $4020
\n" ); document.write( " 6x = 1620
\n" ); document.write( " x = 270,number of adult tickets. 130 the number of child fares (400-270)\r
\n" ); document.write( "\n" ); document.write( "CHECKING our Answer***
\n" ); document.write( " $12*270 + $6*130 = $4020 \n" ); document.write( "
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