Wednesday

January 28, 2015

January 28, 2015

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

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 2:59pmwhen 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

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