document.write( "Question 1048928: Plunbing service charges $35 dollars per hour plus a $25 dollar travel charge for a service call. Good Guys Plumbing charges $40 dollars per hour with no travel charge How long must a service call be for the same two companies to charge the same \n" ); document.write( "
Algebra.Com's Answer #664513 by addingup(3677)![]() ![]() You can put this solution on YOUR website! 25+35x = 40x reverse the equation \n" ); document.write( "40x = 25+35x subtract 35x on both sides \n" ); document.write( "5x = 25 \n" ); document.write( "x = 5 hours. At 5 hours the cost is the same. Note that after 5 hours Plumbing Services is cheaper. You can do this easily by plugging in numbers into the equation. \n" ); document.write( "Example: 6 hours \n" ); document.write( "Plumbing = 25+35(6) = 235 \n" ); document.write( "Good Guys = 40*6 = 240 \n" ); document.write( ": \n" ); document.write( "John \n" ); document.write( " \n" ); document.write( " |