sat数学题一道at a certain high school there are 9 students on the math team and10 students on the acdemic team. there are total of 11 students who are on the exactly one of the teams . of those students who are on the math team, hoe many also on
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sat数学题一道
at a certain high school there are 9 students on the math team and10 students on the acdemic team. there are total of 11 students who are on the exactly one of the teams . of those students who are on the math team, hoe many also onthe academic team.?
1----》数学
2---》ACDEMIC
8----》两科同时
1/2+1/6+1/12+1/20+1/20+1/30+1/42+1/56
DSVDFFD FD
可以画一个维恩图,然后算算每个圈里是多少
sat数学题一道,正答是A.
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