document.write( "Question 258858: Two ships leave the same harbor at the same time. The first ship heads north at 20 miles per hour and the second ship heads west at 15 miles per hour. Write an expression that gives the distance d between the ships after t hours? \n" ); document.write( "
Algebra.Com's Answer #190573 by Alan3354(69443)\"\" \"About 
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Two ships leave the same harbor at the same time. The first ship heads north at 20 miles per hour and the second ship heads west at 15 miles per hour. Write an expression that gives the distance d between the ships after t hours?
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\n" ); document.write( "Their positions with the point of departure form a right triangle, which makes it easier.
\n" ); document.write( "\"s+=+sqrt%28%2820t%29%5E2+%2B+%2815t%29%5E2%29\"
\n" ); document.write( "\"s+=+sqrt%28625t%5E2%29\"
\n" ); document.write( "s = 25t, t in hours, s in miles
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