document.write( "Question 879227: Chris and Leslie drove a total of 969 miles in 17.4 hours. Chris drove the first part of the trip and averaged 45 miles per hour. Leslie drove the remainder of the trip and averaged 65 miles per hour. For what length of the time did Chris drive? \n" ); document.write( "
Algebra.Com's Answer #530610 by ewatrrr(24785)\"\" \"About 
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x/45 + (969-x)/65 = 17.4hrs |Multiplying thru by 2925 so as all denominators = 1
\n" ); document.write( " 65x + 45(969-x) = 50895
\n" ); document.write( " x = 7290/20 = 364.5mi
\n" ); document.write( "\"364.5mi%2F45mph\" = 8.1 hr
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