A radioactive material loses 10% of its mass each year. What proportion will be left there after n=6 years?
Thank you for submitting an example text correction or rephasing. We will review the example in a short time and work on the publish it.
Showing 0 comments:
Tips to related online calculators
Our percentage calculator will help you quickly calculate various typical tasks with percentages.
You need to know the following knowledge to solve this word math problem:
Next similar math problems:
- Tenth member
Calculate the tenth member of geometric sequence when given: a1=1/2 and q=2
- Six terms
Find the first six terms of the sequence a1 = -3, an = 2 * an-1
- Geometric progression 2
There is geometric sequence with a1=5.7 and quotient q=-2.5. Calculate a17.
- Five members
Write first 5 members geometric sequence and determine whether it is increasing or decreasing: a1 = 3 q = -2
Researchers ask 200 families whether or not they were the homeowner and how many cars they had. Their response was homeowner: 14 no car or one car, two or more cars 86, not homeowner: 38 no car or one car, two or more cars 62. What percent of the families
- Terms of GP
What is the 6th term of the GP 9, 81, 729,. .. ?
- Geometric sequence 4
It is given geometric sequence a3 = 7 and a12 = 3. Calculate s23 (= sum of the first 23 members of the sequence).
- GP - 8 items
Determine the first eight members of a geometric progression if a9=512, q=2
- A perineum
A perineum string is 10% shorter than its original string. The first string is 24, what is the 9th string or term?
The population grew in the city in 10 years from 42000 to 54500. What is the average annual percentage increase of population?
- The city 2
Today lives 167000 citizens in city. How many citizens can we expect in 11 years if their annual increase is 1%?
- Annual pension
Calculate the amount of money generating an annual pension of EUR 1000, payable at the end of the year and for a period of 10 years, shall be inserted into the bank to account with an annual interest rate of 2%
Calculate what member of the sequence specified by ? has value 86.
- The crime
The crime rate of a certain city is increasing by exactly 7% each year. If there were 600 crimes in the year 1990 and the crime rate remains constant each year, determine the approximate number of crimes in the year 2025.
- Account operations
My savings of php 90,000 in a bank earns 6% interest in a year. If i will deposit additional php 10,000 at the end of 6 months, how much money will be left if i withdraw php 25,000 after a year?
- 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?
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?