Logarithms


For an equation of the form:

a = bt

where a and b are constants, the value of t can be found using the properties of logarithms.


For example, for the equation: 200 = 30t,

The value of t is then,

t =
log (200)
log (30)
= 1.55778

This was done using one of the properties for logarithms.

The property used and other logarithm properties can be found at the Logarithm Properties page.