document.write( "Question 737411: A lemming runs from a point A to a cliff at 4m/s,jumps over the edge at B and falls at C at an average speed of 25 m/s,if the total distance from A to C is 500 metres and the time taken for the journey is 41 seconds,find the height Bc of the cliff. \n" ); document.write( "
Algebra.Com's Answer #450378 by ankor@dixie-net.com(22740)\"\" \"About 
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A lemming runs from a point A to a cliff at 4m/s,jumps over the edge at B and falls at C at an average speed of 25 m/s,
\n" ); document.write( "if the total distance from A to C is 500 metres and the time taken for the journey is 41 seconds, find the height Bc of the cliff.
\n" ); document.write( ":
\n" ); document.write( "let c = height of the cliff
\n" ); document.write( "total A to C distance given as 500m
\n" ); document.write( "(500-c) = distance from A to B
\n" ); document.write( ":
\n" ); document.write( "Write a time equation; time = dist/speed
\n" ); document.write( ":
\n" ); document.write( "Run time + fall time = 41 sec
\n" ); document.write( "\"%28%28500-c%29%29%2F4\" + \"c%2F25\" = 41
\n" ); document.write( "multiply by 100, clears the denominators,
\n" ); document.write( "25(500-c) + 4c = 4100
\n" ); document.write( "12500 - 25c + 4c = 4100
\n" ); document.write( "-25c + 4c = 4100 - 12500
\n" ); document.write( "-21c = -8400
\n" ); document.write( "c = -8400/-21
\n" ); document.write( "c = 400 meter clif
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