document.write( "Question 1102658: The amount of radioactive substance present, in pounds, at time t, in days, is given by the formula y=60(2)^−0.2t. Find the number of pounds present in 30 days. \n" ); document.write( "

Algebra.Com's Answer #717354 by josmiceli(19441) $\"\"$ $\"About$

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$\"+y+=+60%2A2%5E%28+-.2t+%29+\"$
\n" ); document.write( " $\"+y+=+60%2A2%5E%28+-.2%2A30+%29+\"$
\n" ); document.write( " $\"+y+=+60%2A2%5E%28+-6+%29+\"$
\n" ); document.write( " $\"+y+=+60%2A.015625+\"$
\n" ); document.write( " $\"+y+=+.9375+\"$
\n" ); document.write( "In 30 days there is .9375 pounds present
\n" ); document.write( " \n" ); document.write( "

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