Unit 2, Lesson 9
Representing Ratios with Tables
Accelerated 6
9.1
Warm-up
Which three go together?
9.2
Activity
Noah’s recipe for one batch of sparkling orange juice uses 4 liters of orange juice and 5 liters of soda water.
- Use the double number line to show how many liters of each ingredient to use for different-sized batches of sparkling orange juice.
- If someone mixes 36 liters of orange juice and 45 liters of soda water, how many batches would they make?
- If someone uses 400 liters of orange juice, how much soda water would they need?
- If someone uses 455 liters of soda water, how much orange juice would they need?
- Explain the trouble with using a double number line diagram to answer the last two questions.
Student Lesson Summary
A table is a way to organize information. Each horizontal set of entries is called a row, and each vertical set of entries is called a column. (The table shown has 2 columns and 5 rows.) A table can be used to represent a collection of equivalent ratios.
Here is a double number line diagram and a table that both represent the situation: “The price is $2 for every 3 mangos.”
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