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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?

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?

asked
User Marco Massetti
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8.6k points

1 Answer

7 votes
Let the total invites be X. Then 0.75X = 21. divide by 0.75:
X = 21/0.75 = 28
answered
User Dan Leveille
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8.5k points
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