Camille’s average on her 6 math tests this marking period is 7Fortunately for Ca

游客2024-01-12 61

问题 Camille’s average on her 6 math tests this marking period is 7Fortunately for Camille, her teacher drops each student’s lowest grade, and this raises her average to 8What was her lowest grade?

选项 A、20
B、25
C、30
D、40
E、50

答案 B

解析

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Camille’s average on her 6 math tests this marking period is 7Fortunately for Ca

Iftheaverage(arithmeticmean)ofxandyis40,andz-x=60,whatistheavera

Atypeofextra-largeSUVaverages12.2milespergallon(mpg)onthehighway,b

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Acaraverages40milesperhourforthefirst6hoursofatripandaverages60

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Khalildrove120kilometersinacertainamountoftime.Whatwashisaveragesp

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