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Unit rates and Rates

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
show Rate  
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After 3 hours, Ernie had travelled 195 miles. If he travels at a constant speed, how far will he have travelled after 5 hours?   show
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show 0.20  
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show Unit rate  
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A car is going 50 miles per hour. A rate that describes this would have units of   show
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show 102 words per minute  
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It cost me $46.80 to fill my 13-gallon gas tank. What was the price of gas per gallon?   show
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show Quantities with different units  
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show $8 per pound  
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What mathematical operation do ratios involve?   show
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show 20/9  
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show 1  
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A cashier at the grocery store rung up 2 customers in 8 minutes. At this rate, how many customers can he ring up in 30 minutes?   show
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show the 20 pound bag  
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Which is the better buy? a 12 pack of Coke for $3.50 or a six pack of Coke for $1.80?   show
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Created by: memphis moran