document.write( "Question 134076: If 100 grams of a radioactive material diminish to 80 grams in 2 years, find the half life of the substance \n" ); document.write( "
Algebra.Com's Answer #98045 by Nate(3500)![]() ![]() ![]() You can put this solution on YOUR website! 100 - 80 = 20 grams lost \n" ); document.write( "20 / 2 = 50 / x \n" ); document.write( "10 = 50 / x \n" ); document.write( "x = 5 years \n" ); document.write( " |