Best Buys

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What is the best price for milk?

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1.5 liters of milk at $2.70 is the better buy compared to 2 liters at $3.80.

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CCSS.6.RP.A.3B

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How do you calculate the unit rate?

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Unit rate is calculated by dividing the total quantity by the total cost. For example, 36 cookies for $4 gives 9 cookies per dollar.

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What is the unit rate of cookies per dollar if you buy 36 cookies for $4?

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9 cookies per dollar.

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How do you determine the better buy between two products?

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Calculate the price per unit for each product and compare. The product with the lower price per unit is the better buy.

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CCSS.6.RP.A.3B

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What is the cost per juice box in an 8 pack for $4.79?

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$4.79 ÷ 8 = $0.59875 per juice box.

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What is the cost per juice box in a 12 pack for $6.59?

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$6.59 ÷ 12 = $0.5491667 per juice box.

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CCSS.6.RP.A.1

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Which is the better buy: an 8 pack of juice boxes for $4.79 or a 12 pack for $6.59?

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The 12 pack is the better buy.

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CCSS.6.RP.A.3B

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What is the unit rate in dollars per hour if Elijah earns $200 for 8 hours of work?

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$25 per hour.

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CCSS.6.RP.A.1

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How do you find the better buy between different packs of t-shirts?

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Calculate the price per t-shirt for each pack and compare.

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CCSS.6.RP.A.1

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What is the price per t-shirt in a 4 pack for $2.24?

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$2.24 ÷ 4 = $0.56 per t-shirt.

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CCSS.6.RP.A.1

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