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Becca predicts that 75% of the people she invites to her party will come. If she wants to have at least 21 guests, how many people should she invite to her party?
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Becca predicts that 75% of the people she invites to her party will come. If she wants to have at least 21 guests, how many people should she invite to her party?

User Marco Massetti
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1 Answer

7 votes
Let the total invites be X. Then 0.75X = 21. divide by 0.75:
X = 21/0.75 = 28
User Dan Leveille
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