document.write( "Question 1095674: Hi
\n" ); document.write( "the amount of water in a tank decreases by half every half hour.the tank now has 70 cubic metres of water. How much water will be left after 90min.\r
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Algebra.Com's Answer #710187 by ikleyn(52943) $\"\"$ $\"About$

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document.write( "The condition says\r\n" );
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document.write( "V(t) = ,\r\n" );
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document.write( "where V(t) is the current volume,  is the initial volume and t is time in hours.\r\n" );
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document.write( "In 1.5 hours,  v(1.5) = 70 : 2^(2*(3/2)) =  = 8.75 cibic meters.\r\n" );
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document.write( "Or, 3/2 hours is 3 times (1/2) of an hour.\r\n" );
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document.write( "So, divide 70 by 2 three times.\r\n" );
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document.write( "You will get the same answer.\r\n" );
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