document.write( "Question 1041255: two numbers are in ratio 4:5. if difference of their cubes is 61, find the number \n" ); document.write( "

Algebra.Com's Answer #656235 by ikleyn(52788) $\"\"$ $\"About$

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\n" ); document.write( "two numbers are in ratio 4:5. if difference of their cubes is 61, find the number
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document.write( " =  --->\r\n" );
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document.write( " =  = .\r\n" );
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document.write( "Let a = , b = .\r\n" );
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document.write( "Then \r\n" );
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document.write( " =      (1)   and\r\n" );
document.write( "b - a = 61.       (2)\r\n" );
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document.write( "---> a =   --->  b -  = 61  --->  125b - 64b = 61*125  --->  61b = 61*125  --->  b = 125  --->   = 125  --->  y =  = 5.\r\n" );
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document.write( "Then x = 4.\r\n" );
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