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OpenStudy (anonymous):
Sally estimated that her call would take twenty-one minutes but it actually took fifteen minutes. What was her percent of error?
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OpenStudy (anonymous):
28.6%
OpenStudy (anonymous):
thanks :) @AwesomeB
OpenStudy (anonymous):
the difference between two given values and divide that by 21. multiply that by 100 and get your answer. May I have a mdeal :)
OpenStudy (anonymous):
:D ty
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