Free Printable Exponential Growth and Decay Practice

Worksheets

Exponential Growth and Decay Practice

Total questions: 10

Worksheet time: 3hrs 30mins

Name

Class

Date

Twenty years ago, Mr. Davis purchased his home for $160,000. Since then, the value of the home has increased about 5% per year. How much is the home worth today?

$176,783.29

$424,527.63

$57,357.75

$532,041,076.80

A stamp gets more expensive each year. It increases in value by 60 % each year. What is the growth FACTOR?

1.06

1.6

The half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?

3.0g

0.25mg

0.3g

0.25g

Barium-122 has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10 minutes to set up an experiment using barium-122, how much barium-122 will be left when the experiment begins?

0.25g

2.5g

25g

80g

Nathan bought a VERY fancy boat for about $125,000. If the boat's value depreciates at the rate of 15% per year, what is the value of the boat at the end of 10 years?

$12,512.50

$18,750

$24,609.30

$505,694.72

You buy a house for $190,000. It DEPRECIATES 6% per year. How much is it worth in 10 years?

$102, 336.87

$53.76

$4241.01

$346.46

What is the formula for finding half-life?

$A=A_0\left(0.5\right)^{\left(\frac{t}{h}\right)}$

$y=a\left(1+r\right)^t$

$y=a\left(1-r\right)^t$

If a radioactive substance decays continuously at a rate of 3% per year, how much will be left after 10 years if there was initially 200 grams?

145.96 grams

160.00 grams

210.00 grams

180.00 grams

The equation y = a(1 - r)^x is used for:

1/2 life

Interest

Exponential Growth

Exponential Decay

10.

The equation y = a(1 + r)^x is used for:

Exponential Growth

Exponential Decay

Half Life

Interest

100 %

Exponential Growth and Decay Practice

Total questions: 10

Worksheet time: 3hrs 30mins

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