document.write( "Question 250266: My son has a simple problem that I cannot solve.\r
\n" ); document.write( "\n" ); document.write( "A team has a car wash. They charge $3 for cars and $5 per truck. They was 19 vehicles and make a total of $71.00. How many cars and trucks are washed?
\n" ); document.write( "

Algebra.Com's Answer #182184 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
A team has a car wash. They charge $3 for cars and $5 per truck. They was 19 vehicles and make a total of $71.00. How many cars and trucks are washed?
\n" ); document.write( "-----------------
\n" ); document.write( "C + T = 19 (total vehicles)
\n" ); document.write( "3C + 5T = 71 (total charges)
\n" ); document.write( "C + T = 19 --> T = 19-C
\n" ); document.write( "Sub for T in 2nd eqn
\n" ); document.write( "3C + 5*(19-C) = 71
\n" ); document.write( "3C + 95 - 5C = 71
\n" ); document.write( "-2C = -24
\n" ); document.write( "C = 12
\n" ); document.write( "------
\n" ); document.write( "T = 7
\n" ); document.write( "
\n" ); document.write( "
\n" );