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
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\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
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\n" ); document.write( " O ● ____________●C__________●D
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\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.
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Algebra.Com's Answer #390109 by ankor@dixie-net.com(22740)\"\" \"About 
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
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\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.
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\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
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\n" ); document.write( "time = time rowing + time walking
\n" ); document.write( "f(x) = \"%28sqrt%28x%5E2%2B3%5E2%29%29%2F4\" + \"%286-x%29%2F5\"
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