# Exponential function - math word problems

#### Number of problems found: 75

- Exponential equation

In the set R solve the equation: ? - Exponential equation

Find x, if 625 ^ x = 5 The equation is exponential because the unknown is in the exponential power of 625 - Exponential equation

Solve for x: (4^x):0,5=2/64. - Coordinate

Determine missing coordinate of the point M [x, 120] of the graph of the function f bv rule: y = 5^{x} - 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. - Log

if ?, what is b? - Logarithm

Determine the number whose decimal logarithm is -3.8. - Sequence

Calculate what member of the sequence specified by ? has value 86. - Subsets

How many are all subsets of set ?? - Sequence - 5 members

Write first five members of the sequence ? - Interest

What is the annual interest rate on your account if we put 32790 and after 176 days received 33939.2? - Car value

The car loses value 15% every year. Determine a time (in years) when the price will be halved. - Population

What is the population of the city with 3% annual growth, if in 10 years the city will have 60,000 residents? - Virus

We have a virus that lives one hour. Every half hour produce two child viruses. What will be the living population of the virus after 3.5 hours? - Radioactive material

A radioactive material loses 10% of its mass each year. What proportion will be left there after n=6 years? - Geometric progression

In geometric progression, a1 = 7, q = 5. Find the condition for n to sum first n members is: sn≤217. - Demographics

The population grew in the city in 10 years from 30000 to 34000. What is the average annual percentage increase of population? - If you 3

If you deposit $4500 at 5% annual interest compound quarterly, how much money will be in the account after 10 years? - Decibel

By what percentage does the sound intensity increase if the sound intensity level increases by 1 dB? - Investment

1000$ is invested at 10% compound interest. What factor is the capital multiplied by each year? How much will be there after n=12 years?

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