下面是為大家準備的2014年1月4日—2014年1月1日的6道SAT考試數學選擇題練習題。同學們在備考SAT數學的過程中，一定要加強習題的練習，熟練到能充分理解題意，爭取得到滿分。

　　1.Addtoand then subtractfrom the sum. Ifis a positive integer, the result must be an integer multiple of

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　2.A machine can insert letters in envelopes at the rate ofper minute. Another machine can stamp the envelopes at the rate ofper second. How many such stamping machines are needed to keep up withinserting machines of this kind?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　3.In the-plane, linepasses through the pointsand. Lineis perpendicular to line. What is the slope of line?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　4.If a number is chosen at random from the set, what is the probability that it is a member of the solution set of bothand?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　5.The first term of the sequence above is. Which of the following could be the formula for finding theterm of this sequence for any positive integer?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　6.Ifpercent ofis greater than, which of the following must be true?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　下面是為大家準備的2014年1月4日—2014年1月1日的6道SAT考試數學選擇題練習題。同學們在備考SAT數學的過程中，一定要加強習題的練習，熟練到能充分理解題意，爭取得到滿分。

　　1.Addtoand then subtractfrom the sum. Ifis a positive integer, the result must be an integer multiple of

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　2.A machine can insert letters in envelopes at the rate ofper minute. Another machine can stamp the envelopes at the rate ofper second. How many such stamping machines are needed to keep up withinserting machines of this kind?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　3.In the-plane, linepasses through the pointsand. Lineis perpendicular to line. What is the slope of line?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　4.If a number is chosen at random from the set, what is the probability that it is a member of the solution set of bothand?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　5.The first term of the sequence above is. Which of the following could be the formula for finding theterm of this sequence for any positive integer?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

　　6.Ifpercent ofis greater than, which of the following must be true?

　　(A)

　　(B)

　　(C)

　　(D)

　　(E)

參考答案及解析：

　　1.The correct answer is B

　　Explanation

　　The mathematical expression given in the question is, which is equivalent to. The expressioncan be factored as. For every positive integer,must be a multiple of. If, then, which is not an integer multiple of,,, or. Therefore, the correct answer is.

　　2.The correct answer is A

　　Explanation

　　First you can changeminute toseconds so that the ratios are both in envelopes per second. One inserting machine inserts letters at the rate ofperseconds, orper second. Somachines would insertletters per second.

　　Letbe the number of stamping machines needed to keep up withinserting machines. Then, since one machine stampsenvelopes per second,machines stampenvelopes per second. You can write the equation, which gives.

　　3.The correct answer is B

　　Explanation

　　Linepasses through the pointsand, so the slope of lineis equal to. Linesandare perpendicular, so the slope of lineis equal to the negative reciprocal of the slope of line. Therefore, the slope of lineis.

　　4.The correct answer is C

　　Explanation

　　Ifand, then. The numbers from the listed set that satisfy these inequalities areand. There are five elements in the listed set, so the probability of a number chosen at random from the set being a member of the solution set of both inequalities is.

　　5.The correct answer is B

　　Explanation

　　You do not know the value of theterm or theterm of the sequence, but you do know the values of the,, andterms. The correct formula must giveas the value of theterm,as the value of theterm, andas the value of theterm. Choice E,, gives, not, as the value of theterm. Choice A,, gives, not, as the value of theterm. Choice C,, gives, not, as the value of theterm. Choice D,, gives, not, as the value of theterm. This leaves choice B,, which gives the correct values for the,, andterms of the sequence.

　　6.The correct answer is A

　　Explanation

　　Ifpercent ofis greater than, then. It follows that, and so.

　　以上就是關于6道SAT考試數學選擇題練習題及其答案和解析，非常詳細。同學們在備考階段，一定要加強習題的練習以及題意的理解，爭取SAT數學滿分。