document.write( "Question 884342: if it took someone 1/5 hour longer going 50 mph, then the same trip at 60 mph. how many miles did they travel? \n" ); document.write( "

Algebra.Com's Answer #534200 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+d+\"$ = miles traveled
\n" ); document.write( "Let $\"+t+\"$ = time traveling at 60 mi/hr
\n" ); document.write( "At 60 mi/hr:
\n" ); document.write( "(1) $\"+d+=+60t+\"$
\n" ); document.write( "(2) $\"+d+=+50%2A%28+t+%2B+.2+%29+\"$
\n" ); document.write( "----------------------
\n" ); document.write( "Substitute (1) into (2)
\n" ); document.write( "(2) $\"+60t+=+50%2A%28+t+%2B+.2+%29+\"$
\n" ); document.write( "(2) $\"+60t+=+50t+%2B+10+\"$
\n" ); document.write( "(2) $\"+10t+=+10+\"$
\n" ); document.write( "(2) $\"+t+=+1+\"$
\n" ); document.write( "-------------
\n" ); document.write( "(1) $\"+d+=+60t+\"$
\n" ); document.write( "(1) $\"+d+=+60%2A1+\"$
\n" ); document.write( "(1) $\"+d+=+60+\"$
\n" ); document.write( "---------------
\n" ); document.write( "They traveled 60 mi
\n" ); document.write( "check:
\n" ); document.write( "(2) $\"+60t+=+50%2A%28+t+%2B+.2+%29+\"$
\n" ); document.write( "(2) $\"+60%2A1+=+50%2A%28+1+%2B+.2+%29+\"$
\n" ); document.write( "(2) $\"+60+=+50%2A1.2+\"$
\n" ); document.write( "(2) $\"+60+=+60+\"$
\n" ); document.write( "OK
\n" ); document.write( " \n" ); document.write( "

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