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In a survey, 480 people, or 75%, said they attended a movie at least once a month. How many people were surveyed?

Verified Answer :

JollyAshley

480/3= 160
160 = 25%
160*4= 640
640 people were surveyed.

ElijahRobins10

This is a great problem to set up a proportion. We know that 480 people is 75% of some population, let's call it P. So we know that 480/P = 75/100 (because 75/100 is 75%). Therefore, we would solve 480/P=75/100, which would yield, 480100=75P (cross multiplication). Then P=(480100)/75. P=640. 

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