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OpenStudy (mackenzie2013):
Lu-yin predicts that 80% of the people she invites to her party will come. If she wants to have at least 20 guests, how many people should she invite to her party? 250 people 16 people 25 people 150 people
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Vocaloid (vocaloid):
80% = 80/100 = 0.8 let x be the number of party guests that she invites 80% of x can be represented as 0.8x, which equals the number of guests who will show up 0.8x = 20 solve for x
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