1.A company gave away free fitness club memberships to its employees as Christmas bonus.A number of
题目
1.A company gave away free fitness club memberships to its employees as Christmas bonus.A number of employees used the free membership to enroll in a fitness program on January 2nd,as a New Year’s resolution.By March 2nd,4/5 of these people were still participating in the program.Of those,5/6 were still participating on May 2nd,and of those,9/10 were still participating on July 2nd.If 36 of the original participants were still in the program on July 2nd,how many employees were originally enrolled?
2,Ben spent1/4 of his allowance on a movie.He spent11/18 of the remainder at Starbucks.Then,from the money remaining,he spent $9 on magazines,which left him 1/24 of his original allowance.How much money was left?
3,Of the people entering high school,4/5graduate.Of the people graduating high school,5/8are admitted to university or college.Of the people admitted to the post-secondary institutions,1/2graduate.
(a) What fraction of the people entering high school graduate from univers
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.请你先翻译成中文吧...
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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