[讨论]一道数学题目不会，，

小肚兜佛祖

The number n of units of its product that Company X is scheduled to produce in month t of its next fiscal year is given by the formula n = 900/1 + c2^-t , where c is a constant and t is a positive integer between 1 and 6, inclusive. What is the number of units of its product that Company X is scheduled to produce in month 6 of its next fiscal year?
(1) Company X is scheduled to produce 180 units of its product in month 1 of its next fiscal year.
(2) Company X is scheduled to produce 300 units of its product in month 2 of its next fiscal year.

看不懂。。也不会。。

micro_mok

是通过两个方程求出常量c吧，然后就可以求t=6，但你那里c2^-t，还有前面的1+，缺了括号吧。。。。。你列两个公式，看能不能解，只要确定那个解是否唯一解即可，这种题，答案只可能是c或e，实在不行，就碰运气吧^_^

小肚兜佛祖

The number n of units of its product that Company X is scheduled to produce in month t of its next fiscal year is given by the formula n = 900/（1 + c2^-t） , where c is a constant and t is a positive integer between 1 and 6, inclusive. What is the number of units of its product that Company X is scheduled to produce in month 6 of its next fiscal year?
(1) Company X is scheduled to produce 180 units of its product in month 1 of its next fiscal year.
(2) Company X is scheduled to produce 300 units of its product in month 2 of its next fiscal year.
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确实少了一括号，，嘿嘿，，，不过答案是D啊。。。

micro_mok

哦，是哦，这个是一元一次方程。。。。又粗心了。。。。又可以吸收教训了^_^

反正嘛，做这些题思路就是这样，先看方程是几元几次的，2元要两个不平衡的方程才可以解，2次或以上的方程，就要注意有多解（GMAT对解方程是要求唯一解的，一般来说）