document.write( "Question 880281: Calculate the average speed of a vehicle in km/h traveling at 36 km/h for 20 minutes and then at 25 m/s for 30 minutes. \n" ); document.write( "
Algebra.Com's Answer #531305 by ewatrrr(24785)\"\" \"About 
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total Distance/total time = average speed
\n" ); document.write( "\"%2836kmph%2820%2F60%29+%2B+25kmph%2830%2F60%29%29%2F%2850%2F60%29+=+%28720+%2B+750%29%2F50\"= 29.4kmph
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