Compound Interest
Compound Interest Word Problems
Logs

Exponential EQ's
Solving Log EQ's
100

P = $13,000; R = 4%; N = semiannually; T = 4 years

What is $15,231.57

100

John invested $16,000 at 3% compounded annually for 7 years. Find A.  

What is $19,677.98

100

Simplify the expression: log (base 2) 8

What is 3?

100

Write the exponential equation 4^5= 1,024 in logarithmic form.

What is log (base 4) 1,024 = 5 ?

100

Solve: log x = 3

What is 1000?

200

P = $52,500; R = 8%; N = annually; T = 8 years 

What is $97,173.84

200

Mary borrowed $450 at 8% compounded semiannually for 3 years. Find A.

What is $569.39

200

Write the equation log (base 3) 729 = 6 in exponential form.

What is 3^6=729 ?

200

Write the exponential equation 27^ (1/3) = 3 in logarithmic form.

What is log (base 27) 3 = 1/3 ?

200

log (base 3) x = 5

What is x = 243 ?

300

P = $453,900; R = 12%; N = quarterly; T = 3.5 years

What is $685,203.15

300

Carlos invested $147,000 at 13% compounded monthly for 5.5 years. Find A.

What is $299,342.20

300

Write the equation log 1000 = 3 in exponential form.

What is 10^3=1000 ?

300

Write the exponential equation (1/2)^-3=8 in logarithmic form.

What is log (base 1/2) 8 = -3

300

Solve: log x = 4  

10000

400

P = $3,927; R = 14%; N = monthly; T = 1.5 year

What is $4,838.77

400

A principal of $200 is deposited in an account that pays 2.5%  interest compounded yearly. When will the account be $2,700?

105 years 

400

What is the asymptote of the graph of f(x) = log(x - 1) ?

What is x=1 ?

400

Is the graph y= .7^x increasing or decreasing, and is it a function?

What is decreasing and yes, a function?

400

Solve: 3 log x + 4  = 7 Round your answer to two decimal places.

10

500

P = $64,000; R = 5%; N = quarterly; T = 3 1/4 years

What is $75,216.89

500

A principal of $700 is deposited in an account that pays 5.5%  interest compounded yearly. When will the account be $8,200?  ( ROUND) 

46 years

500

What is the  vertical asymptote of the graph of f(x)= log(x + 2) -1 ?

What is x= -2 ?

500

Simplify log (10) 

 what is 1 ?

500

 Freeeeeeeee

+ 200