document.write( "Question 764178: A boat completed one quarter of it's journey at 9 30 and two thirds at 10 50. Assuming a constant speed what time did it start and finish? \n" ); document.write( "
Algebra.Com's Answer #465318 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! A boat completed one quarter of it's journey at 9:30 and two thirds \n" ); document.write( " at 10:50. \n" ); document.write( "Assuming a constant speed what time did it start and finish? \n" ); document.write( ": \n" ); document.write( "Let the total journey = 1 \n" ); document.write( "Find the portion of the journey covered between 9:30 and 10;50 \n" ); document.write( " \n" ); document.write( "Find the no. of minutes between 9:30 and 10:50 = 80 minutes \n" ); document.write( ": \n" ); document.write( "Distance varies directly with time, use a ratio equation \n" ); document.write( "Let t = total time for the journey \n" ); document.write( " \n" ); document.write( "Cross multiply \n" ); document.write( " \n" ); document.write( "t = 80* \n" ); document.write( "t = 192 minutes for the whole journey \n" ); document.write( ": \n" ); document.write( "Start time to 9:30; \n" ); document.write( "Start time = 9:30 - 48 min = 8:42 is the start time \n" ); document.write( ": \n" ); document.write( "Find the completion time \n" ); document.write( "8:42 + 192 min = 8:42 + 3:12 = 11:54 is the completion time \n" ); document.write( " |