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David put air into 300 balloons and used 8 gallons of hellum. If he blew up 2700 balloons at the same

rate, how many gallons of hellum would be used?

User Stvar
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1 Answer

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Well, 2,700/300 is 9, so that means we multiply 8 by 9: 8•9=72gallons
User Mjafari
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