document.write( "Question 343938: a car travel first 30 km with a unifom speed of 60 km/h and the next 30 km with uniform speed of 40 km/h calculate first the total time of journey and average speed of the car? \n" ); document.write( "
Algebra.Com's Answer #246045 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Rate*Time=Distance
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\n" ); document.write( "\"R%2At=D\"
\n" ); document.write( "\"t=D%2FR\"
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\n" ); document.write( "\"t%5B1%5D=30%2F60=1%2F2\"hr
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\n" ); document.write( "\"t%5B2%5D=30%2F40=3%2F4\"hr
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\n" ); document.write( "Total Time:\"T=t%5B1%5D%2Bt%5B2%5D=1%2F2%2B3%2F4=2%2F4%2B3%2F4=5%2F4\"hrs=\"75\"minutes
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\n" ); document.write( "Average Speed=Total Distance/Total Time
\n" ); document.write( "\"Vave=60%2F%285%2F4%29=48\"km/h
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