course 2, lesson 1-2 find each unit rate. round to the nearest hundredth if necessary. 1. $3.99 for...

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?


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 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





•complex fraction12

212

3 112

14

How did what you learned today help you answer the




How did what you learned today help you answer the




Sample answers:• By simplifying a complex fraction to find a unit rate• By writing a percent as a rate per 100

Simplify .



831 5


course 2, lesson 1-2 find each unit rate. round to the nearest hundredth if necessary. 1. $3.99 for...

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