Algebra.Com's Answer #853057 by ikleyn(53422)![\"\"](\"/images/stars/stars-13.gif\")  
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# 1187361 (KMST)
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document.write( "The human body contains approx. 30 trillion red blood cells. If these cells were placed tightly together,
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document.write( "they would fit into a cube approx. 5 in. on each edge.
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document.write( "1) Determine outside surface of cube in sq. yds.
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document.write( "2)If the outside surface of cube was divided into 30 trillion pieces, determine outside surface in sq. yds.
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document.write( " In this post, the problem is formulated incorrectly.\r
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document.write( " It is also incorrectly interpreted, incorrectly treated and incorrectly solved by the other tutor.\r
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document.write( " The meaning of the problem is totally different, and after proper solution\r
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document.write( " the answer will shock you, because it will disclose absolutely unexpected phenomena.\r
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document.write( " The correct formulation is (and should be) as follows\r
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document.write( " The human body contains approx. 30 trillion red blood cells. If these cells were placed tightly together, \r
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document.write( " they would fit into a cube approx. 5 in. on each edge.\r
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document.write( " 1) Determine outside surface area of cube in sq. yds.\r
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document.write( " 2) If the volume of cube was divided into 30 trillion pieces/(small cubes), determine their total \r
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document.write( " outside surface area in sq. yds.\r
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document.write( " S O L U T I O N, step by step\r
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document.write( "(1) surface area of the cube with the side 5 inches is  = 6*25 = 150 square inches.\r\n" );
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document.write( " It is the same as  =  = 0.11574 sq. yards (approximately).\r\n" );
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document.write( "(2) Now we are going to divide the 5x5x5-inches cube into 30 trillions smal cubes. \r\n" );
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document.write( " 30 trillions =  .\r\n" );
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document.write( " To find the linear size of small cube, we should divide 5 inches by  = 31072.325.\r\n" );
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document.write( " By doing it, we get the size of small cube s =  = 0.000160915 inches.\r\n" );
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document.write( " Then the surface area of this small cube is  square inches. \r\n" );
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document.write( " It is very small area - - - but we have 30 trillions such small cubes,\r\n" );
document.write( " so, to get the total surface area of these 30 trillions small cubes,\r\n" );
document.write( " we should multiply by .\r\n" );
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document.write( " By doing it, we get for the total surface area the value\r\n" );
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document.write( "  = 4660848.759 square inches,\r\n" );
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document.write( " which is the same as  = 3596.333919 square yards.\r\n" );
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document.write( "Now the two values for the surface area to compare are 0.11574 square yards from part (1)\r\n" );
document.write( "and 3596.3 square yards from my last calculation.\r\n" );
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document.write( "It tells us that the surface area of the red blood cells in dispersed state (as it is in the live human body)\r\n" );
document.write( "is approximately 35000 times greater than the surface area of the 5x5x5-inches cube.\r\n" );
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document.write( "It is that unexpected phenomena which I pointed at the beginning of my post,\r\n" );
document.write( "and it explains and discloses the fact that dispersed red blood cells distribute oxygen very effectively \r\n" );
document.write( "in the lungs and in all human's body.\r\n" );
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document.write( "These facts are of common knowledge.\r\n" );
document.write( "I learned it in my 12 - 13 - 14 years, reading Children Encyclopedia on Biology.\r\n" );
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document.write( "I think that it should be clear to an analytical chemist @KMST as 2 x 2 x 2 = 8.\r\n" );
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document.write( "Solved to satisfy your curiosity.\r
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