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Mathematics, 22.01.2020 19:31 frisha
Why is the percent increase from 45 to 75 not equal to the percent decrease from 75 to 45? select three options
the amount of change is different for the percent increase and the percent decrease
the ratio of the percent increase is not the same as the percent decrease.
the ratio for the percent increase has a smaller denominator than the percent decrease.
the ratio for the percent increase has a different numerator than the percent decrease.
the original amount for the percent increase is different from the original amount for the percent decrease.
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Mathematics, 21.06.2019 21:40
The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?
Answers: 2
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