In a certain culture of bacteria the rate of increase is proportional to the number present. (i) If it is found that the number doubles in 6 hours, how many may be expected at the end of 18 hours? (ii) If there are 106 at the end of 4 hours and 8 × 106 at the end of 7 hours, how many were there in the beginning?

In a certain culture of bacteria the rate of increase is proportional to the number present. (i) If it is found that the number doubles in 6 hours, how many may be expected at the end of 18 hours? (ii) If there are 106 at the end of 4 hours and 8 × 106 at the end of 7 hours, how many were there in the beginning?

Principles Of Radiographic Imaging: An Art And A Science

6th Edition

ISBN:9781337711067

Author:Richard R. Carlton, Arlene M. Adler, Vesna Balac

Publisher:Richard R. Carlton, Arlene M. Adler, Vesna Balac

Chapter8: X-ray Production

Section: Chapter Questions

Problem 1RQ

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