document.write( "Question 362967: can anyone show me a table and then solve for the following word problem? If you drive for 2 hours at 80 km/hr, how fast must you rive during the next hour in order to have an average speed of 75 km/hr \n" ); document.write( "
Algebra.Com's Answer #258687 by mananth(16946)\"\" \"About 
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can anyone show me a table and then solve for the following word problem? If you drive for 2 hours at 80 km/hr, how fast must you rive during the next hour in order to have an average speed of 75 km/hr
\n" ); document.write( "...
\n" ); document.write( "hours speed distance
\n" ); document.write( "2-------80---------160
\n" ); document.write( "..
\n" ); document.write( "1--------x----------1*x
\n" ); document.write( "...
\n" ); document.write( "Total average = total distance/total time
\n" ); document.write( "total distance = 160+x
\n" ); document.write( "total time = 3 hours
\n" ); document.write( "average required = 75 mph
\n" ); document.write( "...
\n" ); document.write( "(160+x)/3 = 75
\n" ); document.write( "(160+x)=3*75
\n" ); document.write( "160+x=225
\n" ); document.write( "x=225-160
\n" ); document.write( "x=65 mph
\n" ); document.write( "he should drive at 65 mph
\n" ); document.write( "...
\n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( "
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