Problem: The population of City A is 10,000 and it grows 3 times each year. The population of City B is 100,000 and it doubles each year. When will A catch up to B?  Start of the Solution:  City A: P(t) = 10,000*3 ^t City B: P(t)= 100,000*2^t  Find t: 10,000*3^t = 100,000*2^t    (I believe I am supposed to use log but I am unsure of how to do that, would you mind explain in as much detail possible)

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Problem: The population of City A is 10,000 and it grows 3 times each year. The population of City B is 100,000 and it doubles each year. When will A catch up to B? 

Start of the Solution: 

City A: P(t) = 10,000*3 ^t

City B: P(t)= 100,000*2^t 

Find t:

10,000*3^t = 100,000*2^t 

 

(I believe I am supposed to use log but I am unsure of how to do that, would you mind explain in as much detail possible)

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