document.write( "Question 971010: carlos and maria drove a total of 217 miles in 4.1 hours. Carlos drove the first part of the trip and averaged 52 miles an hour. Maria drove the rest of the trip and averaged 54 miles per hour. How many hours did Maria drive? \n" ); document.write( "
Algebra.Com's Answer #593658 by ankor@dixie-net.com(22740)\"\" \"About 
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carlos and maria drove a total of 217 miles in 4.1 hours.
\n" ); document.write( " Carlos drove the first part of the trip and averaged 52 miles an hour.
\n" ); document.write( " Maria drove the rest of the trip and averaged 54 miles per hour.
\n" ); document.write( " How many hours did Maria drive?
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\n" ); document.write( "let t = time driven by M
\n" ); document.write( "then
\n" ); document.write( "(4.1-t) = time driven by C
\n" ); document.write( ":
\n" ); document.write( "write a distance equation; dist = speed * time
\n" ); document.write( "54t + 52(4.1 - t) = 217
\n" ); document.write( "54t + 213.2 - 52t = 217
\n" ); document.write( "54t - 52t = 217 - 213.2
\n" ); document.write( "2t = 3.8
\n" ); document.write( "t = 3.8/2
\n" ); document.write( "t = 1.9 hrs driven by M
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Check this out find the time driven b C: 4.1-1.9 = 2.2 hrs
\n" ); document.write( "Find how far each actually drove
\n" ); document.write( "C: 52 * 2.2 = 114.4
\n" ); document.write( "M: 54 * 1.9 = 102.6
\n" ); document.write( "---------------------
\n" ); document.write( "total dist: 217 mi \n" ); document.write( "
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