# Solve exponential equations using logarithms: base-10 and base-e

Solve exponential equations that have 10 or e at the base of the exponential term.
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### Problem

Consider the equation 11, dot, 10, start superscript, 5, t, end superscript, equals, 20.
Solve the equation for t. Express the solution as a logarithm in base-10.
t, equals
Approximate the value of t. Round your answer to the nearest thousandth.
t, approximately equals