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Scarlett has set up a lemonade stand outside her house and sells small cups and large cups of lemonade. Each small cup holds 10 ounces of lemonade and each large cup hold 20 ounces of lemonade. Scarlett sold 70 cups of lemonade totaling 1000 ounces. Determine the number of small cups sold and the number of large cups sold.
 

 Feb 6, 2020
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Let the number of small cups =C

The number of large cups        =70 - C

 

10C  +  20(70 - C) =1000, solve for C

C = 40 small cups sold

70 - 40 = 30 Large cups sold

 Feb 6, 2020

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