Question 208086
{{{95-13=45ln(x) }}} Start with the given equation.



{{{82=45ln(x)}}} Combine like terms.



{{{82/45=ln(x)}}} Divide both sides by 45.



{{{1.822=ln(x)}}} Divide



{{{e^1.822=x}}} Use the property {{{y=ln(x)}}} ---> {{{e^y=x}}} to rewrite the equation.



{{{6.184=x}}} Raise 'e' to the 1.822th power to get 6.184



So the answer is {{{x=6.184}}} which means that it will take about 6 years for the percent of spam to reach 95%.