document.write( "Question 1135794: A submarine left Hawaii travelling west four hours before an aircraft carrier. The aircraft carrier traveled in the opposite direction going 8 mph slower than the submarine for three hours which time the ships were 206 miles apart. Find the submarine's speed. \n" ); document.write( "

Algebra.Com's Answer #753468 by ikleyn(52798) $\"\"$ $\"About$

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document.write( "4x + 3*(x + (x-8)) = 206       <<<---===  the sum of the two distances\r\n" );
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document.write( "4x + 3x + 3x - 24 = 206\r\n" );
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document.write( "10x = 206 + 24\r\n" );
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document.write( "10x = 230\r\n" );
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document.write( "x = 230/10 = 23 miles per hour is the submarine' speed.     ANSWER\r\n" );
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