标题: [求助]gwd 3-9 [打印本页]

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作者: cookiezwy    时间: 2013-5-10 07:13     标题: [求助]gwd 3-9

Q9

If 5x = 2y and xy ≠ 0, then is what percent of y?



A. 2%

B. 4%

C. 10%

D. 40%

E. 50%



Answer: D

Can anyone solve this for me? Is the quesiton compete? I don't understand what it really mean~~~

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作者: je04tta    时间: 2013-5-10 22:03

是说x是y的百分之几, 因为5x = 2y, x/y = 2/5, 所以是40%

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作者: cookiezwy    时间: 2013-5-11 10:28

i see..thank you for your help

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作者: napoleon    时间: 2013-5-12 15:26

这个题目漏了个X吧

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作者: Knightll    时间: 2013-5-13 06:18

原来还有个x...

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