The state of decay of radium is proportional to the amount present at any time. Suppose that 400 mg of radium are currently present, and the amount decreases after every hour. After 1 hour, it decreases to 260. How much radium will be left after a. 2.5 hours b. 10 hours if the decrease in number is constant?

The state of decay of radium is proportional to the amount present at any time. Suppose that 400 mg of radium are currently present, and the amount decreases after every hour. After 1 hour, it decreases to 260. How much radium will be left after a. 2.5 hours b. 10 hours if the decrease in number is constant?

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

1st Edition

ISBN:9781680331141

Author:HOUGHTON MIFFLIN HARCOURT

Publisher:HOUGHTON MIFFLIN HARCOURT

Chapter8: Graphing Quadratic Functions

Section: Chapter Questions

Problem 30CR

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