Question

What is the approximate solution of the equation 5^3x = 42 to the nearest hundredth?

x = __

Answer 1

x = 0.77 to the nearest hundredth.

Explanation:

5^3x = 42

3x ln 5 = ln 42

3x = ln42 / ln 5 = 2.3223

x = 2.3223 / 3 = 0.7741