document.write( "Question 512606: two cars leave a gas station at the same time. one car travels east at 50mph while the other car travels west. after 3 hours they are 345 miles apart. how fast is the westbound car traveling? \n" ); document.write( "

Algebra.Com's Answer #342668 by josmiceli(19441) $\"\"$ $\"About$

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think of the eastbound car as being
\n" ); document.write( "stationary and the westbound car as
\n" ); document.write( "traveling at the sum of their speeds
\n" ); document.write( "Let $\"+s+\"$ = speed of westbound car
\n" ); document.write( "-----------------------------
\n" ); document.write( " $\"+d+=+r%2At+\"$
\n" ); document.write( " $\"+345+=+%28+50+%2B+s+%29%2A3+\"$
\n" ); document.write( " $\"+345+=+150+%2B+3s+\"$
\n" ); document.write( " $\"+3s+=+195+\"$
\n" ); document.write( " $\"+s+=+65+\"$
\n" ); document.write( "65 mi/hr is the speed of westbound car \n" ); document.write( "

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