兩道SAT數(shù)學(xué)練習(xí)題目及答案.

　　下面為大家整理的是兩道SAT數(shù)學(xué)練習(xí)題目及答案分析的內(nèi)容。SAT數(shù)學(xué)題目的知識(shí)點(diǎn)是大家已經(jīng)學(xué)習(xí)過(guò)的，但是如何應(yīng)用到SAT數(shù)學(xué)特別的用法中則需要大家更多的練習(xí)才能掌握。下面我們就一起來(lái)看看這兩道SAT數(shù)學(xué)題的詳細(xì)內(nèi)容吧。

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　　1.A group of workers can harvest all the grapes from square meters of a vineyard in minute. At this rate, how many minutes will the group need to harvest all the grapes from square meters of this vineyard?

　　Answer Choices

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　2.The projected sales volume of a video game cartridge is given by the function where is the number of cartridges sold, in thousands; is the price per cartridge, in dollars; and is a constant. If according to the projections, cartridges are sold at per cartridge, how many cartridges will be sold at per cartridge?

　　Answer Choices

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　Explanation

　　1.The correct answer is A

　　Since square meters is times square meters, times as much time is needed to harvest the grapes from the square meters of vineyard. minute , which equals minutes.

　　2.The correct answer is C

　　For cartridges sold at per cartridge, (since is the number of cartridges sold, in thousands) and . Substituting into the equation yields.

　　Solving this equation for yields　

.

　　Since is a constant, the function can be written as . To determine how many cartridges will be sold at per cartridge, you need to evaluate . Since is given in thousands, there will be cartridges sold at per cartridge.

　　以上就是關(guān)于SAT數(shù)學(xué)練習(xí)題目及答案分析的全部?jī)?nèi)容，答案的分析非常詳細(xì)。大家可以在備考自己的SAT數(shù)學(xué)考試的時(shí)候，進(jìn)行適當(dāng)?shù)木毩?xí)和應(yīng)用。

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