Compound Interest
Maria invests $5,000 in a savings account that earns an annual interest rate of 4%, compounded annually. How much money will she have in the account after 5 years?
$6,083.26
A scientist is studying a radioactive substance that has a half-life of 3 years. If she starts with a sample weighing 80 grams, how much of the substance will remain after 9 years?
10 grams
A small town has a population of 1,000 people. The population is increasing at a rate of 5% per year. What will the population be after 3 years?
1,158 people
What is the slope of the line?
y - 2 = 3(x - 4)
What is the largest country in the world by land area?
Russia
Alex invests $8,000 in a savings account that earns an interest rate of 5%, compounded quarterly. How much money will he have in the account after 7 years?
$11,327.94
A geologist is studying a radioactive isotope that has a half-life of 5 years. If she starts with a sample weighing 50 grams, how much of the substance will remain after 15 years?
6.25 grams
A farmer has 20 goats. Each year, the number of goats increases by 25% due to breeding. How many goats will the farmer have after 4 years?
49 goats
What is the missing number of the geometric sequence (a3)?
3, 12, ___, 192,..
48
What is the largest species of shark in the world?
Whale Shark
Jamie invests $6,500 in a savings account that earns an interest rate of 12%, compounded monthly. How much money will she have in the account after 3 years?
$9,300.00 (rounded up)
A chemist is working with a radioactive element that has a half-life of 10 years. If she begins with a sample of 200 grams, how much of the element will remain after 30 years?
25 grams
A printer starts with 1,000 sheets of paper. Each month, 10% of the paper is used up. How many sheets of paper will remain after 6 months?
531 sheets
Write the explicit formula for the nth term of the arithmetic sequence.
15, 19, 23, 27,...
an = 15+4(n - 1)
DAILY DOUBLE
Which river is the longest in the world?
The Nile River
Taylor invests $10,000 in a savings account that earns an annual interest rate of 4.5%, compounded monthly. How much money will he have in the account after 9 years?
$14,981
A medical researcher is studying a radioactive tracer that has a half-life of 12 years. If she starts with a sample weighing 120 grams, how much of the tracer will remain after 36 years?
15 grams
What is the growth rate in the expression?
y = 34(1.13)x
.13 or 13%
Write the equation of a line in slope-intercept form that passes through the points (2, 3) and (5, 9).
y = 2x−1
Who is the only player to have won the FIFA World Cup five times?
Pelé
Taylor invests $7,500 in a savings account that earns an annual interest rate of 1%, compounded bi-annually. How much money will he have in the account after 5 years?
$7,883.55
A physicist is analyzing a sample of a radioactive isotope that has a half-life of 7 years. If she starts with 500 grams of the isotope, how much of the substance will remain after 28 years?
31.25 grams
What is the decay rate of the function?
f(x) = 5(0.4)x
.6 or 60%
DAILY DOUBLE
Maria is saving money to buy a new laptop that costs $1,200. She currently has $300 saved and plans to save an additional $150 each month. How many months will it take her to save enough money to buy the laptop?
6 months
What is the basic unit of life in all living organisms?
The Cell