document.write( "Question 870541: Francisco drives to work, which is 23 miles away, at a speed of 40 miles per hour. He drives home from work at a speed of 60 miles per hour. What is Francisco's average speed overall? \n" ); document.write( "

Algebra.Com's Answer #524963 by josmiceli(19441) $\"\"$ $\"About$

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Average speed is always ( total distance ) / ( total time )
\n" ); document.write( "Total distance = $\"+2%2A23+=+46+\"$ mi
\n" ); document.write( "---------------
\n" ); document.write( " $\"+t%5B1%5D+=+23+%2F+40+\"$
\n" ); document.write( " $\"+t%5B2%5D+=+23+%2F+60+\"$
\n" ); document.write( "-----------------------
\n" ); document.write( " $\"+t%5B1%5D+%2B+t%5B2%5D+=+23%2F40+%2B+23%2F60+\"$
\n" ); document.write( " $\"+t%5B1%5D+%2B+t%5B2%5D+=+23%2A%28+1%2F40+%2B+1%2F60+%29+\"$
\n" ); document.write( " $\"+t%5B1%5D+%2B+t%5B2%5D+=+23%2A%28+3%2F120+%2B+2%2F120+%29+\"$
\n" ); document.write( " $\"+t%5B1%5D+%2B+t%5B2%5D+=+23%2A%28+5%2F120+%29+\"$ hrs
\n" ); document.write( "( total distance ) / ( total time ) = $\"+46+%2F+%28+23%2A%28+1%2F24+%29+%29+\"$
\n" ); document.write( "( total distance ) / ( total time ) = $\"+24%2A2+\"$
\n" ); document.write( "( total distance ) / ( total time ) = $\"+48+\"$ mi/hr\r
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