Julie uses 12 ounces of cheese in her potato soup recipe. her recipe yeilds 8 servings. if julie needs enough for 20 servings how many pounds of cheese will she need?

How many times does 8 go into 20?
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Yes. 2.5. Remember it!
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Hmph. Julie needs 1/2 of a recipe or else she will yield too many or too less servings. 
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What do we do?! WHAT DO WE DO?!
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Don't Panic. The Answer to the Ultimate Question of Life, the Universe, and Everything is coming up.
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Actually, the Answer to the Math Problem.
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What's half of 8?
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Yep. 4. Remember it!
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Remember I told you to remember 2.5?
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We use it now! 
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Multiply 12 by 2.
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Yes, 24!!
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and the .5?
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Don't Panic.
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I told you to remember 4, right?
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We use it! 
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What's 24+4?
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Yes, 28!!
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28 ounces of cheese it is.
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oh my that's a lot
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going to cost a lot... good luck julie!! you're going to rid the corner store of cheese
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Hope I helped!
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Any questions, ask away!