course 2, lesson 1-2 find each unit rate. round to the nearest hundredth if necessary. 1. $3.99 for...
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Course 2, Lesson 1-2
Find each unit rate. Round to the nearest hundredth if necessary.
1. $3.99 for 16 ounces 2. 730 miles in 14 hours
3. $28 for 15 goldfish 4. 234 Calories in 3 servings
5. Which is the better unit price: $1.99 for a 3-ounce bottle or $2.49
for a 4-ounce bottle?
6. Cassandra leaves college to go home for the summer. She lives
424 miles away and arrives in 8 hours. Which ratio shows her
rate of travel in simplest form?
Course 2, Lesson 1-2
ANSWERS
1. $0.25 per ounce
2. 52.14 miles per hour
3. $1.87 per goldfish
4. 78 Calories per serving
5. $2.49 for a 4-ounce bottle
6. 53:1
HOW can you show that two objects are proportional?
Ratios and Proportional Relationships
Course 2, Lesson 1-2
Ratios and Proportional Relationships
Course 2, Lesson 1-2 Common Core State Standards © Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.
• 7.RP.1Compute unit rates associated with ratios of fractions, including ratios of lengths, areas and other quantities measured in like or different units.
• 7.NS.3Solve real-world and mathematical problems involving the four operations with rational numbers.
Mathematical Practices
1 Make sense of problems and persevere in solving them.
3 Construct viable arguments and critique the reasoning of others.
4 Model with mathematics.
6 Attend to precision.
•To simplify a complex fraction•To find unit rates
Ratios and Proportional Relationships
Course 2, Lesson 1-2
Ratios and Proportional Relationships
Course 2, Lesson 1-2
•complex fraction12
212
3 112
14
How did what you learned today help you answer the
HOW can you show that two objects are proportional?
Course 2, Lesson 1-2
Ratios and Proportional Relationships
How did what you learned today help you answer the
HOW can you show that two objects are proportional?
Course 2, Lesson 1-2
Ratios and Proportional Relationships
Sample answers:• By simplifying a complex fraction to find a unit rate• By writing a percent as a rate per 100
Simplify .
Ratios and Proportional Relationships
Ratios and Proportional Relationships
831 5
Course 2, Lesson 1-2
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