Exponential function - practice problems - page 8 of 10

Number of problems found: 191

Savings interest
It was 1975, and Petr deposited the entire cash of 10,900.40 Euros in a savings account with 4% interest, credited monthly. He did not add anything to the book, and in exactly 15 years, he withdrew the entire amount in cash. How much did you choose?
BTC bubble
One of the world's experts in bubbles -- Prof. Robert Shiller, a Yale economist -- said Bitcoin "was an amazing example of a bubble" back in 2014. If you exchanged fiat US dollars $100 to BTC in 2010, now in 2017, have a value of 72.9 million dollars. Fin
Combined interest
Combined interest: Carol has deposited CZK 100,000 in the bank with an annual interest rate of 1.5%. The money was put into the account on 5.5.2016 and withdrawn all before Christmas on 20.12.2016. How much money did she withdraw?
Compound interest
Compound interest: Clara deposited CZK 100,000 in the bank with an annual interest rate of 1.5%. Both money and interest remain deposited in the bank. How many CZK will be in the bank after three years?
Investment of the year
At the beginning of the year, my father invested EUR 1,000 in the bank at an annual interest rate of 3%. How many euros will the bank credit him with the deposit after eight months? (compound interest - from financial mathematics)
Cells - guts
A single-celled organism under ideal conditions divides into two cells every 27 hours on average. How many would there be in 7 days if all the cells remained alive?
Population growth
The population is 22000 people. With an annual increase of 1.4%, there will be 25,000 people. How many years will it be?
Power equation
Solve the power equation: 2.1463 = 0.4179x^0.419
Doubling
The message is spreading that each day has doubled the number of people who know about it. All know a message for 20 days. How long known it, eighth people?
Exponent equation
Solve the equation: (4096^x) · 8! = 161280
Equation value
Determine the value of x in this equation: (0.125^x) · 10⁴ = 5000
Expression values
Determine the x and y values in the expression: x! · 10^y = 0.0504.
Interest rate
At what annual interest rate would we get an interest of 60 euros on a deposit of € 6,000 for three months?
Exponent equation
What is the solution of the equation: 2^x = 2/64
Exponential equation
Determine the value of having y in the expression (3^y): (4^-1)=36. Unknown y is a natural number greater than zero.
Exponent value
Determine the value of f: 0.49^f = 0.7
Exponential equation
Determine m (solve the exponential equation - unknown in the exponent): 0.25 μm = 0.5
Exponent equation
Determine the value of x: 2^x = (2^-3): 2
Exponent value
Calculate the value of y: 3^y = 0.333
Exponent value
What is the value of x in the expression 8^x = 1/64

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