Exponential Growth and Decay word problems

The half life of a radioactive substance is 6 hours. If you pour 110 ML in a bowl, how much will be left in 24 hours?

• 6.875

• 6.5

• 1.71875

• 110

Tags

CCSS.HSF.LE.A.4

The population of orange beach was 25,000 in 2020. If it is increasing by 5% each year, how many people will live there in 2030?

• 14,968

• 40, 722

• 66,332

• 108,049

Tags

CCSS.HSF.BF.A.2

If your parents deposit $2,000 in an account the day you are born, and that account earns 2.5% interest compounded quarterly (4). How much will be in that account on your 21st birthday?

• 53,573,579.83

• 325,582.35

• 3375.40

• 4987.09

You bought a car in 2020 for $18,000. The car depreciates by 8% every year. How much is your car going to be worth in 2025?

• 11,863.47

• 26,447.91

• 2238.56

• 8,098.32

Tags

CCSS.HSF.BF.A.2

A species of endangered tigers had 100 left in 2015. If the rate is decreasing by 10% per year, how many will be left in 2030?

• 417

• 4

• 21

• 25

Tags

CCSS.HSF-LE.A.1C

Your parents put $5000 into a college fund when you were born. If the interest rate is 4% compounded monthly (12), how much will be in that account when you turn 18?

• 6, 890.87

• 7,678.90

• 5308.65

• 10,259.87

The half life of Tylenol is 5 hours. If you take 800mg how much will be in your system 15 hours later?

• .02

• 25

• 100

• 75

Tags

CCSS.HSF.LE.A.4

The population of chilton county is 4,000 people. It is increasing at a rate of 1.7% per year, how many people will live there in 5 years?

• 4352

• 3671

• 5489

• 2493

Tags

CCSS.HSF-LE.A.1C

What is the equation for this problem?

​ y=​​ (a)   (​ (b)   )^​ (c)  

• $78,200.00
• 1.04
• 10
• .96

Tags

CCSS.HSF.LE.A.2