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OpenStudy (anonymous):
A band plays a free concert in a local park. There are 400 people at the park. IF the crowd is decreasing by 30% every hour . How many people are left after 3 hrs?
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OpenStudy (anonymous):
120 people
OpenStudy (anonymous):
how did you get it?
OpenStudy (lieutenantgeneral):
400 of 30% = 120 30 divided by 3 = 10 400 of 10% = 40
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