prep~~ 请教两道输血··

xyqirene · 发表于 2010-11-2 10:59:34

Before being simplified, the instructions for computing income tax in country R were to add 2 percent of one`s annual income to the average of the 100 units of country R`s currency and 1 percent of one`s annual income, which of the following represents the simplified formula for computing the income tax, in country R`s currency , for a person in that the country whose annual income is I ?

50+I/40

Three grade of milk are 1%,2%,3% fat by volume, if x gallon of the 1% grade, y gallon of the 2% grade, and z gallon of the 3%grade are mixed to given x+y+z gallon of a 1.5% grade, what is x in terms of y and z?
Y+3z

xyqirene · 发表于 2010-11-4 20:05:42

我不想让它沉下去！！！~~~

prep~~ 请教两道输血··

所属分类: GMAT考试

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