document.write( "Question 549566: a man traveling an hour by car and another hour by plane covered a total distance of 850km. if the average speed of the plane taken by the man was 16 times that of the car. what was the distance covered by the car?????? \n" ); document.write( "

Algebra.Com's Answer #357854 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"d\"$ = distance covered by car
\n" ); document.write( "Let $\"s\"$ = speed of car
\n" ); document.write( "given:
\n" ); document.write( "equation for car:
\n" ); document.write( "(1) $\"+d+=+s%2A1+\"$ km
\n" ); document.write( "equation for plane:
\n" ); document.write( "(2) $\"+850+-+d+=+16%2As%2A1+\"$
\n" ); document.write( "------------------
\n" ); document.write( "This is 2 equations and 2 unknowns,
\n" ); document.write( "so it's solvable
\n" ); document.write( "Substitute (1) into (2)
\n" ); document.write( "(2) $\"+850+-s+=+16s+\"$
\n" ); document.write( "(2) $\"+17s+=+850+\"$
\n" ); document.write( "(2) $\"+s+=+50+\"$
\n" ); document.write( "and, since
\n" ); document.write( "(1) $\"+d+=+s%2A1+\"$
\n" ); document.write( "(1) $\"+d+=+50+\"$
\n" ); document.write( "The distance covered by the car was 50 km \n" ); document.write( "

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