unknown6669
07.03.2020 •
Mathematics
A manager at Saks Fifth Avenue wants to estimate the number of customers to expect on the last shopping day before Christmas. She collects data from three previous years, and determines that the crowds follow the same general pattern. When the store opens at am, people enter, and the total number in the store doubles every minutes. When the number of people in the store reaches security guards need to be stationed at the entrances to control the crowds. At what time should the guards be commissioned?
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Ответ:
8 sec
Step-by-step explanation
50 = 1sec
50 + 50 = 100
50 + 50 + 50 + 50 = 200
You keep adding 50 until you reach 400
Every 50 you add is 1 sec so if you add eight 50’s it would be 400 and that would mean it takes him 8 seconds to travel 400ft