Mathematics Grade 9 15 min

Exponential growth and decay word problems

Exponential growth and decay word problems

What you'll learn

  • Identify the appropriate customary unit (cup, pint, quart, or gallon) to measure the volume of common objects (e.g., a glass of juice, a milk carton) with 80% accuracy.
  • Select the correct customary unit (cup, pint, quart, or gallon) from a list of options when given a real-world scenario describing a volume to be measured, in 4 out of 5 trials.
  • Match at least 3 out of 4 volume containers (cup, pint, quart, gallon) to corresponding pictures of common objects whose volume would be measured by that unit.

Tutorial Preview

1

A bacteria colony with 10 cells doubles every hour. How many cells are there after 3 hours?

2

A car worth $20,000 loses 15% of its value each year. What is it worth after 2 years?

3

$500 is invested at 4% annual interest. What is the balance after 2 years?

Sample Practice Questions

Easy
A town's population of 1,000 grows by 10% per year. What is the population after 1 year?
0.1010
1.1100
2.1200
3.2000
Easy
A phone's value of $800 decreases by 20% in one year. What is its new value?
0.$640
1.$780
2.$600
3.$160
Easy
$100 is invested at 5% annual interest. What is the balance after 1 year?
0.$101
1.$125
2.$105
3.$150

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Frequently asked questions

What grade level is "Exponential growth and decay word problems"?

Exponential growth and decay word problems is a Grade 9 Mathematics lesson on ExcelOS.

What will I learn in Exponential growth and decay word problems?

You'll be able to: Identify the appropriate customary unit (cup, pint, quart, or gallon) to measure the volume of common objects (e.g., a glass of juice, a milk carton) with 80% accuracy; Select the correct customary unit (cup, pint, quart, or….

Is "Exponential growth and decay word problems" free to practice?

Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.

How many practice questions are included with Exponential growth and decay word problems?

This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.

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