### Home > INT3 > Chapter 5 > Lesson 5.2.1 > Problem5-57

5-57.

Using the idea behind the Ancient Puzzle you studied today, what is the value of $b$ in each equation below?  Explain your reasoning.

1. $\log_b243 = 5$

$b^5 = 243$

1. $\log_b0.001 = -3$

$0.001=\frac{1}{10^3}$