document.write( "Question 1093869: A boat heads north at 30 mph while a steamer heads east at 40 mph at the same time. When is the distance between them 50 mi? \n" ); document.write( "

Algebra.Com's Answer #708477 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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boat heads north at 30 mph while a steamer heads east at 40 mph at the same time.
\n" ); document.write( " When is the distance between them 50 mi?
\n" ); document.write( ":
\n" ); document.write( "let t = time (hrs) that they are 50 mi apart
\n" ); document.write( "Use pythag here; a^2 + b^2 = c^2; dist = speed * time
\n" ); document.write( "(30t)^2 (40t)^2 = 50^2
\n" ); document.write( "900t^2 + 1600t^2 = 2500
\n" ); document.write( "It's obvious that t = 1 hr \n" ); document.write( "

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