Question 1058765
In 1950 the average global temperature was 57.2 degrees F.
 Since that year the temperature has risen at a rate of .05 percent per year.
 Some estimates claim that the polar ice caps could melt if the average global temperature were raised 5 degrees.
 If the current growth rate remains the same, what year would the polar ice caps
 melt?
:
let y = no. of years for temp to rise 5 degrees to 62.2 degrees
{{{57.2*(1.0005^y) = 62.2}}}
{{{1.0005^y = 62.2/57.2}}}
using natural logs
{{{y*ln(1.0005) = ln(62.2/57.2)}}}
find the logs
 y * .0005 = .0838
 y = {{{.0838/.0005}}}
 y = 167.6 years
"If the current growth rate remains the same, what year would the polar ice caps
 melt?"
1950 + 167.6 = 2117.6 ~ the year 2117 this would occur