Mathematics Grade 8 15 min

Find the constant of proportionality: word problems

Find the constant of proportionality: word problems

What you'll learn

  • Identify the percent and fraction values presented in a word problem with 80% accuracy.
  • Solve word problems by converting percents to fractions and fractions to percents with at least 70% accuracy.
  • Explain, in writing, the relationship between a percent and its equivalent fraction using at least two complete sentences, demonstrating understanding of their proportional relationship.
  • Apply knowledge of percents and fractions to solve real-world word problems, demonstrating problem-solving skills by correctly identifying the solution strategy in at least 3 out of 4 scenarios.

Tutorial Preview

1

A car travels 120 miles in 2 hours. Find the constant of proportionality in miles per hour.

2

A store sells 8 oranges for $4.00. Find the constant of proportionality for the cost per orange.

3

A recipe needs 3 cups of sugar to make 36 cookies. Find the constant of proportionality for cookies per cup of sugar.

Sample Practice Questions

Easy
A bike travels 20 miles in 2 hours. What is the constant of proportionality in miles per hour?
0.10
1.20
2.2
3.40
Easy
You buy 5 pens for $2. What is the constant of proportionality for the cost per pen?
0.$0.40
1.$2.50
2.$5
3.$10
Easy
A factory makes 100 toys in 10 minutes. What is the constant of proportionality for toys per minute?
0.10
1.100
2.1
3.1000

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Frequently asked questions

What grade level is "Find the constant of proportionality: word problems"?

Find the constant of proportionality: word problems is a Grade 8 Mathematics lesson on ExcelOS.

What will I learn in Find the constant of proportionality: word problems?

You'll be able to: Identify the percent and fraction values presented in a word problem with 80% accuracy; Solve word problems by converting percents to fractions and fractions to percents with at least 70% accuracy; Explain, in writing, the….

Is "Find the constant of proportionality: 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 Find the constant of proportionality: word problems?

This lesson includes 32 practice questions across multiple difficulty levels, each with instant feedback and explanations.

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