document.write( "Question 159805: A ship enters the Red Sea from the Suez Canal, moving south at 28.0 km/h. Two hours later, a second ship enters the Red Sea at the southern end, moving north at 35.0 km/h. If the Red Sea is 2230 km long, when will the ships pass ???\r
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Algebra.Com's Answer #117840 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! A ship enters the Red Sea from the Suez Canal, moving south at 28.0 km/h. Two hours later, a second ship enters the Red Sea at the southern end, moving north at 35.0 km/h. If the Red Sea is 2230 km long, when will the ships pass ??? \n" ); document.write( ": \n" ); document.write( "Let t = travel time of the southbound ship \n" ); document.write( "then \n" ); document.write( "(t-2) = travel time of the northbound ship \n" ); document.write( ": \n" ); document.write( "We know the total traveling distance of both ships = 2230 mi \n" ); document.write( ": \n" ); document.write( "Write a distance equation: Dist = speed * time \n" ); document.write( ": \n" ); document.write( "South dist + north dist = 2230 mi \n" ); document.write( "28t + 35(t-2) = 2230 \n" ); document.write( "28t + 35t - 70 = 2230 \n" ); document.write( "63t = 2230 + 70 \n" ); document.write( "t = \n" ); document.write( "t = 36.5 hrs after the southbound ship leaves the canal \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check: \n" ); document.write( "28(36.5) + 35(34.5) = \n" ); document.write( "1022. + 1207.5 = 2229.5 ~ 2230 \n" ); document.write( " |