Ratio, Rate and Proportions

If you go to the store to buy dog food, which store has the better buy? Hint: Which unit rate is less...

• Walmart: $11.99 for an 18.5 pound bag

• Tractor Supply: $20.99 for a 42 pound bag

Does this table represent a proportional relationship? Write yes or no. If the answer is yes, what is the rate?

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Do these two fractions form a proportion?

• Yes

• No

Do these two fractions form a proportion?

• Yes

• No

What would x need to equal if this forms a proportion?

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What does k equal to make this a proportion?

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OFF

What does n equal to make these two fractions a proportion?

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What does f equal to make these two fractions a proportion?

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Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Solve the proportion.

• n=6

• n=24

• n=7

• n=8