Homework Help: Calc. Help ASAP please

Posted by Joe on Tuesday, March 22, 2011 at 3:55pm.

the tuition at a college increases exponentially. the current tuition (let it be t=0) is 36,000 and in 2 years it will be 39,690.

a) find a formula to predict the cost of tuition in t years.

Is this right? And I'm stuck at the end.

39,690= 36,000e^(kt)
11.025=e^(kt)
ln(11.025)=ln(e^(kt))
2.400=kt ??? Don't know what to do from here.

b) what is the yearly growth rate of tuition (in %)?
c)what will the tuition be in 25 years?
for this part, I think I plug 25 in for t of the formula I have not figured out in part a????

Please help! Test soon.

Calc. Help ASAP please - sigfig, Wednesday, March 30, 2011 at 2:59pm
when t=2 y= 39690, so 39690=3600e^k(2)
11.025=e^k(2)
ln(11.025)=k(2)ln(e)
2.400=k(2)
1.200=k

y=36000e^1.2t

Answer this Question

Related Questions

Math - Assume that the cost of a college education increases an average of 5% ...
math - Four-year -college tuition. The average tuition at a public four-year ...
college algebra - 4. The yearly cost T, in thousands of dollars, of tuition and ...
Math - One student studied for 8 years in college and her tuition bills are ...
Algebra 1 - i need help working these correctly! 1. Are the inequalities 3x-4&...
Math - A tuition bill was $4360. If she paid $6052 what's the percentage ...
college - The yearly cost T, in thousands of dollars, of tuition and required ...
math - College is expected to cost $150,000 per year in 18 years, how much ...
Finance - shley is planning to attend college when she graduates from high ...
finance - Anne is planning to attend college when she graduates from high school...

For Further Reading

First Name:
School Subject:
Answer: