document.write( "Question 458868: An aircraft carrier left the pier traveling east eight hours before a fishing boat. The fishing boat traveled in the opposite direction for four hours, going 5 mph slower than the aircraft carrier. The ships were then 380 miles apart. What was the aircraft carrier's speed?\r
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Algebra.Com's Answer #314758 by stanbon(75887)\"\" \"About 
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An aircraft carrier left the pier traveling east eight hours before a fishing boat. The fishing boat traveled in the opposite direction for four hours, going 5 mph slower than the aircraft carrier. The ships were then 380 miles apart. What was the aircraft carrier's speed?
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\n" ); document.write( "Carrier DATA:
\n" ); document.write( "time = 12 hrs ; rate = r mph ; distance = 12r miles
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\n" ); document.write( "Boat DATA:
\n" ); document.write( "time = 4 hrs ; rate = r-5 mph ; distance = 4(r-5) miles
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\n" ); document.write( "Equation:
\n" ); document.write( "distance + distance = 380
\n" ); document.write( "12r + 4(r-5) = 380
\n" ); document.write( "12r + 4r -20 = 380
\n" ); document.write( "16r = 400
\n" ); document.write( "r = 25 mph (carrier speed)
\n" ); document.write( "r-5 = 20 mph (fishing boat speed)
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\n" ); document.write( "cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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