Exponential Function Solving - Growth (Discrete, Mis-matched Time Units) - Equation to Time

Level 1

The topics in this unit focus on mastering exponential growth and decay functions. Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

Exponential Function Solving - Growth (Discrete, Mis-matched Time Units) - Equation to Time Worksheet

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Exponential Function Solving - Growth (Discrete, Mis-matched Time Uni...
1
Solve for the time given this model of a monthly compounding growth of money in a savings account?
A LaTex expression showing 503 =400 times (1+0.08) to the power of (t times 3)
a A LaTex expression showing t = 1 over 3 times \ln{\frac{P over P sub 0 }}{\ln{(1+r)}}
b A LaTex expression showing t = 3 times \ln{\frac{P over P sub 0 }}{\ln{(1-r)}}
c A LaTex expression showing t = 1 over 3 times \frac{\ln{P times P sub 0 }}{\ln{(1+r)}}
2
Solve for the time given this model of a growth in credit card debt with monthly interest?
A LaTex expression showing 711 =500 times (1+0.04) to the power of (t times 12)
a A LaTex expression showing t = 1 over 12 times \frac{\ln{D times D sub 0 }}{\ln{(1+r)}}
b A LaTex expression showing t = 1 over 12 times \ln{\frac{D over D sub 0 }}{\ln{(1+r)}}
c A LaTex expression showing t = 12 times \ln{\frac{D over D sub 0 }}{\ln{(1+r)}}
3
Solve for the time given this model of a growth in credit card debt with yearly interest?
A LaTex expression showing 3,360 =400 times (1+0.03) to the power of (t over 12 )
a A LaTex expression showing t = 12 times \ln{\frac{D over D sub 0 }}{\ln{(1+r)}}
b A LaTex expression showing t = 1 over 12 times \ln{\frac{D over D sub 0 }}{\ln{(1+r)}}
c A LaTex expression showing t = 12 times \frac{\ln{D times D sub 0 }}{\ln{(1+r)}}
4
Solve for the time given this model of a yearly compounding growth of money in a savings account?
A LaTex expression showing 2,007 =300 times (1+0.02) to the power of (t over 12 )
a A LaTex expression showing t = 1 over 12 times \ln{\frac{P over P sub 0 }}{\ln{(1+r)}}
b A LaTex expression showing t = 12 times \frac{\ln{P times P sub 0 }}{\ln{(1+r)}}
c A LaTex expression showing t = 12 times \ln{\frac{P over P sub 0 }}{\ln{(1+r)}}
5
Solve for the time given this model of a growth in credit card debt with monthly interest?
A LaTex expression showing 351 =300 times (1+0.02) to the power of (t times 12)
a A LaTex expression showing t = 12 times \ln{\frac{D over D sub 0 }}{\ln{(1-r)}}
b A LaTex expression showing t = 1 over 12 times \ln{\frac{D over D sub 0 }}{\ln{(1+r)}}
c A LaTex expression showing t = 1 over 12 times \frac{\ln{D times D sub 0 }}{\ln{(1+r)}}
d A LaTex expression showing t = 12 times \ln{\frac{D over D sub 0 }}{\ln{(1+r)}}
6
Solve for the time given this model of a yearly compounding growth of money in a savings account?
A LaTex expression showing 264,790 =400 times (1+0.07) to the power of (t over 12 )
a A LaTex expression showing t = 12 times \ln{\frac{P over P sub 0 }}{\ln{(1+r)}}
b A LaTex expression showing t = 12 times \frac{\ln{P times P sub 0 }}{\ln{(1+r)}}
c A LaTex expression showing t = 1 over 12 times \ln{\frac{P over P sub 0 }}{\ln{(1-r)}}
7
Solve for the time given this model of a growth in credit card debt with monthly interest?
A LaTex expression showing 574 =500 times (1+0.02) to the power of (t times 3)
a A LaTex expression showing t = 1 over 3 times \frac{\ln{D times D sub 0 }}{\ln{(1+r)}}
b A LaTex expression showing t = 1 over 3 times \ln{\frac{D over D sub 0 }}{\ln{(1+r)}}
c A LaTex expression showing t = 3 times \ln{\frac{D over D sub 0 }}{\ln{(1+r)}}
8
Solve for the time given this model of a growth in credit card debt with yearly interest?
A LaTex expression showing 10,778 =900 times (1+0.03) to the power of (t over 12 )
a A LaTex expression showing t = 12 times \ln{\frac{D over D sub 0 }}{\ln{(1+r)}}
b A LaTex expression showing t = 12 times \frac{\ln{D times D sub 0 }}{\ln{(1+r)}}