SOLUTION: Anyone available to help please?A sample of radioactive substance decayed according to y=100(10)^-0.4x where y was the mass in grams and x was the time in hours after the original

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Question 890518: Anyone available to help please?A sample of radioactive substance decayed according to y=100(10)^-0.4x
where y was the mass in grams and x was the time in hours after the original measurement.
(a) How much was present at the original measurement? (Hint: Let x=0.)
(b) How much was in the sample to the nearest gram after 3 hours?
(c] How much was present to the nearest gram after 5 hours?

Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
Sufficient help for this was given yesterday.
See THAT answer!

Question Number 890324 http://www.algebra.com/algebra/homework/playground/test.faq.question.890324.html

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