document.write( "Question 620386: Hi i am really struggling to know how to answer one of my questions, in my SAC booklet for methods.\r
\n" );
document.write( "\n" );
document.write( "can you please help me solve this.\r
\n" );
document.write( "\n" );
document.write( "Q. a man in a boat, point B is 3 kilometres from the nearest point O of a straight beach. his destination, point D is 6 km's along the beach from O. he can row at 4km/h & walk at 5km/h\r
\n" );
document.write( "\n" );
document.write( "
\n" );
document.write( "
\n" );
document.write( " O ● ____________●C__________●D
\n" );
document.write( " |
\n" );
document.write( " |
\n" );
document.write( " |
\n" );
document.write( " |
\n" );
document.write( " |
\n" );
document.write( " |
\n" );
document.write( " |
\n" );
document.write( " |
\n" );
document.write( " |
\n" );
document.write( " |
\n" );
document.write( " B●
\n" );
document.write( "(there is a line from point B, to C which extends to point D. i just couldn't draw the triangle\r
\n" );
document.write( "\n" );
document.write( "He decided to row to a point C, which is (x)km, along the beach from point O. and then walk from point C to his destination D. Find a general equation for the time, T, of this journey in terms of x.
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #390109 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Hi i am really struggling to know how to answer one of my questions, in my SAC booklet for methods. \n" ); document.write( "can you please help me solve this. \n" ); document.write( "Q. a man in a boat, point B is 3 kilometres from the nearest point O of a straight beach. his destination, point D is 6 km's along the beach from O. he can row at 4km/h & walk at 5km/h\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "O ● ____________●C__________●D \n" ); document.write( "| \n" ); document.write( "| \n" ); document.write( "| \n" ); document.write( "| \n" ); document.write( "| \n" ); document.write( "| \n" ); document.write( "| \n" ); document.write( "| \n" ); document.write( "| \n" ); document.write( "| \n" ); document.write( "B● \n" ); document.write( "(there is a line from point B, to C which extends to point D. i just couldn't draw the triangle \n" ); document.write( "He decided to row to a point C, which is (x)km, along the beach from point O. and then walk from point C to his destination D. Find a general equation for the time, T, of this journey in terms of x. \n" ); document.write( ": \n" ); document.write( "The distance rowed is the hypotenuse of a right triangle with legs of 3 & x \n" ); document.write( "the distance from C to D = (6-x) \n" ); document.write( "Time = dist/speed \n" ); document.write( ": \n" ); document.write( "time = time rowing + time walking \n" ); document.write( "f(x) = |