document.write( "Question 1145226: The half-life of a certain substance is 11.5 years. Suppose that today you have 731 grams of the substance. \r
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\n" ); document.write( "b) how much will be left after 34.5 years?
\n" ); document.write( "c) how much will be left after 48 years? \n" ); document.write( "

Algebra.Com's Answer #766439 by ikleyn(52814) $\"\"$ $\"About$

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document.write( "(a)  23 years is twice half-life period --- therefore,    =  of the substance will remain after 23 years.\r\n" );
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document.write( "(b)  34.5 years is thrice half-life period --- therefore,   =  of the substance will remain after 34.5 years.\r\n" );
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