document.write( "Question 728440: A runner runs 80 km per hour after 1 second he was running 90 km per hour what is the average of the runners speed ?
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Algebra.Com's Answer #445407 by Lisalovemath(2)\"\" \"About 
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First, add both rates of the runners
\n" ); document.write( "80+90=170
\n" ); document.write( "Then, count the number of rates(this number is very important for the next step).
\n" ); document.write( "There are 2.
\n" ); document.write( "Now, divide 170 by 2. Dividing the combined rates (170) by the total numbers of rates(2), we will find the average.
\n" ); document.write( "170/2=85 kilos per hour.
\n" ); document.write( "Thus, the average kph is 85 kph.
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