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[Problem Solving]

试题详情

题目:

One gram of a certain health food contains 7 percent of the minimum daily requirement of vitamin E and 3 percent of the minimum daily requirement of vitamin A. If vitamins E and A are to be obtained from no other source, approximately how many grams of the health food must be eaten daily to provide at least the minimum daily requirement of both vitamins?

选项:

A、3
B、7
C、10
D、14
E、33

答案:

E

提问:

数学

解答:

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阅读2150
解答: sysadmin

提问:

数学

解答:

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阅读2151
解答: sysadmin老师

提问:

这题理解出了minimum requirement, 还是不会解。求详解

解答:

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阅读2236
解答: sysadmin老师

提问:

具体思路

解答:

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阅读2184
解答: sysadmin老师

提问:

数学

解答:

点赞0
阅读2209
解答: sysadmin老师

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