Exponential function - practice problems - page 9 of 10
Number of problems found: 183
- Car value
The car loses value by 15% every year. Determine a time (in years) when its price will halve. - The city 2
Today lives 298000 citizens in the city. How many citizens can we expect in 8 years if their annual increase is 2.4%? - Half life
Determine the half-life of bismuth, when bismuth weight from the original weight of 32 g was only 2 grams in 242 minutes. - The city
At the end of 2010, the city had 248000 residents. The population increased by 2.5% each year. What is the population at the end of 2013? - Loan
Apply for a $ 15000 loan, the loan repayment period is 6 years, and the interest rate 2.8%. How much should I pay monthly (or yearly if paid yearly)? An example is for practice geometric progression and/or periodic payment for an annuity. - Deposit 3
After a year, Martin had a bank account € 1559. What was the interest rate when the initial deposit was € 1409? - Bank
Paul put 10000 in the bank for 6 years. Calculate how much you will have in the bank if he does not pick earned interest or change deposit conditions. The annual interest rate is 3.5%, and the tax on interest is 10%.
- Enterprise
The value of the annual production enterprise is 7.1 million USD. The average annual growth rate is 1.5%. What will the value of production be at the end of the fifth year? - Virus
We have a virus that lives one hour. Every half hour produces two child viruses. What will be the living population of the virus after 3.5 hours? - Simple interest
Peter put into bank 853 euros deposit. After 7 years on account, overall was 984 euro. What was the interest rate if the bank added simple interest? - Population
The town has 159,000 inhabitants. 25 years ago, there were 158,000. If the population's average rate is the same as in previous years, how many people will live in a city in 10 years? - Deposit
If you deposit 719 euros at the beginning of each year, how much money do we have at 1.3% (compound) interest after 9 years? - Interest
What is the annual interest rate on your account if we put 32790 and after 176 days received 33939.2? - Interest
Calculate how much you earn for 10 years 43000 deposit if the interest rate is 1.3% and the interest period is a quarter. - Coordinate
Determine the unknown coordinate of the point M [x, 54] of the graph of the function f by rule: y = 3x
- Log
If log4 x+ log8 x = log_b x, what is b? - Crystal
The crystal grows every month at 1.2 permille of its mass. How many months does it take to develop from weight 177 g to 384 g? - Sequence
Calculate what member of the sequence specified by (5n-2+15) has value 20. - Subsets
How many are all subsets of set C = (97, 67, 66, 18, 59, 64)? - Exponential equation
In the set R, solve the equation: 7 -5 +19x=4 3 -20x
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