document.write( "Question 620162: for Carlos and maria drove a total of 258 miles in 5 hours. Carlos drove the first part of the trip and averaged 53 miles per hour.maria drove the remainder of the trip and averaged 51 mph.how many hours did maria drive ? \n" ); document.write( "
Algebra.Com's Answer #390041 by ankor@dixie-net.com(22740)\"\" \"About 
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for Carlos and maria drove a total of 258 miles in 5 hours.
\n" ); document.write( " Carlos drove the first part of the trip and averaged 53 miles per hour.
\n" ); document.write( " maria drove the remainder of the trip and averaged 51 mph.
\n" ); document.write( " how many hours did maria drive ?
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\n" ); document.write( "Let t = no. of hrs driven by M
\n" ); document.write( "then
\n" ); document.write( "(5-t) = no. of hrs driven by C
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\n" ); document.write( "Write a distance equation, dist = speed * time
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\n" ); document.write( "M's dist + C's dist = 258
\n" ); document.write( "51t + 53(5-t) = 258
\n" ); document.write( "51t + 265 - 53t = 258
\n" ); document.write( "51t - 53t = 258 - 265
\n" ); document.write( "-2t = -7 hrs
\n" ); document.write( "t = \"%28-7%29%2F%28-2%29\"
\n" ); document.write( "t = 3.5 hrs driven by M
\n" ); document.write( ":
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\n" ); document.write( "Check our solution find the distance driven by each (C drove 5-3.5 = 1.5 hrs)
\n" ); document.write( "3.5 * 51 = 178.5 mi
\n" ); document.write( "1.5 * 53 = 79.5
\n" ); document.write( "------------------
\n" ); document.write( "total dist: 258.0 \n" ); document.write( "
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