document.write( "Question 1197605: A computer technician travels 220 on a service call. He averaged 40 miles per hour for
\n" ); document.write( "part of the trip and averaged 50 mph for the rest of the trip. If the total trip took five hours
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Algebra.Com's Answer #830934 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Hi  \r\n" );
document.write( "Total distance traveled = 220mi in a total of 5hr\r\n" );
document.write( "D = rt\r\n" );
document.write( "50t + 40(5-t) = 220mi\r\n" );
document.write( " 10t = 20\r\n" );
document.write( "t = 2hr, time traveled at 50mph\r\n" );
document.write( "  5hr - 2hr = 3hr traveling at 40mph\r\n" );
document.write( " checking:\r\n" );
document.write( " 100mi + 120mi = 220mi  checks\r\n" );
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