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Mathematics 18 Online
OpenStudy (anonymous):

In a survey, 480 people, or 75%, said they attended a movie at least once a month. How many people were surveyed? A. 360 people B. 555 people C. 640 people D. 405 people

OpenStudy (igreen):

75% of 640 = 480..lol.

OpenStudy (igreen):

It had to be either 640 or 555 because 480 is 75% of something, meaning that something has to be higher than 480. So just calculate 75% of 640 and you get 480.

OpenStudy (anonymous):

Ohhhh lol =) Cool!

OpenStudy (ahsome):

Equation: \[Number=Total*\frac{Percentage}{100}\] \[Number=480*\frac{75}{100}\] \[Number=480*0.75\] \[Number=360\]

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