document.write( "Question 831570: Two fishing boats depart a harbor at the same time, one traveling east, the other south. The eastbound boat travels at a speed 7 mi/h faster than the southbound boat. After two hours the boats are 34 mi apart. Find the speed of the southbound boat.\r
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Algebra.Com's Answer #697731 by adamhen894(15)\"\" \"About 
You can put this solution on YOUR website!
for the eastbound boat,
\n" ); document.write( " distance:2(x+7) mile
\n" ); document.write( " speed:(x+7)mi/h
\n" ); document.write( " time: 2h
\n" ); document.write( "for the southbound boat,
\n" ); document.write( " distance: 2x mile
\n" ); document.write( " speed: x mi/h
\n" ); document.write( " time: 2 h \r
\n" ); document.write( "\n" ); document.write( "it's a right triangle problem, the hypotenuse is 34 miles apart.
\n" ); document.write( "now you can set up the equation using Pythagorean theorem,\r
\n" ); document.write( "\n" ); document.write( "(2x)^2+(2x+14)^2=34^2
\n" ); document.write( "using quadratic equation to solve for x,
\n" ); document.write( "you get x = 8
\n" ); document.write( "which is speed (mi/h) of southbound boat.\r
\n" ); document.write( "\n" ); document.write( "let me know if you have any questions, adamchen894@gmail.com \n" ); document.write( "
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