Scale Whole Numbers on a Double-Sided Number Line: Part II 5-85

Lay the foundation for ratio and slope by applying the unit rate. If it rains 21 inches in 7 months, how much will it rain in 36 months? 36 is not a multiple of 7, but 21 is. Since 21 inches in 7 months is a rate of 3 inches in 1 month, it will rain 36 x 3 inches = 108 inches in 36 months. Use the unit rate to scale quantities proportionally.

 
 

1. Learn

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Lay the foundation for ratio and slope by applying the unit rate. If it rains 21 inches in 7 months, how much will it rain in 36 months? 36 is not a multiple of 7, but 21 is. Since 21 inches in 7 months is a rate of 3 inches in 1 month, it will rain 36 x 3 inches = 108 inches in 36 months. Use the unit rate to scale quantities proportionally.

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2. Practice

Lesson
5-85
Lesson
5-85
Lesson
5-85
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3. Apply

POD
5-85
POD
5-85
POD
5-85
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