document.write( "Question 1135455: An aircraft carrier travels to Paris and back. It took three hours longer to go there than it did to come back. The average speed on the trip there was 16 mph. The average speed on the way back was 26 mph. How long did the trip there take? \n" ); document.write( "

Algebra.Com's Answer #753055 by josgarithmetic(39620) $\"\"$ $\"About$

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document.write( "               SPEED      TIME       DISTANCE\r\n" );
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document.write( "GOING             16        x          d\r\n" );
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document.write( "RETURN            26        x-3        d\r\n" );
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document.write( "DIFFERENCE                  3\r\n" );
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\r
\n" ); document.write( "\n" ); document.write( " $\"system%2816x=d%2C26%28x-3%29=d%29\"$ \r
\n" ); document.write( "\n" ); document.write( "-\r
\n" ); document.write( "\n" ); document.write( " $\"16x=26x-78\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"26x-16x=78\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"10x=78\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x=78%2F10\"$ \r
\n" ); document.write( "\n" ); document.write( "about 7 hours 48 minutes \n" ); document.write( "

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