GWD1-M26,30,34

[kikisky]

有沒有哪位大人要把這三題給它弄開啊~~???
醬我很難整理燕子連結ㄋㄟ~@@(三題都連到這嗎???)
(豬大應該很難整理連結吧???)

[Quinton]

叮噹∼

抱歉造成你的困擾了！！

請問我要怎麼把題目分開？！

[bugubugu]

Q34
In the xy-plane, what is the slope of line l?
(1) Line l dose not intersect the line with equation y = 1 - x.
(2) Line l intersects the line with equation y = x – 1.

(1) 不相交 ....那就是平行嚕.....即得斜率
(2) 相交@@...這個條件什麼都不能球吧

答案應該是................A....................(吧)

不相交∼就是平行？！
有這樣的規定嗎？！
還是我沒看清楚題目？！ @@@

係地...
平面上不相交就是平行...
但空間上(XYZ-PLAN)就不一定囉...
因為有可能是歪斜線 ----> 扯遠了...高中數學ETS應該不會考

[hsinherng]

Q30:
The total cost of an office dinner was shared equally by k of the n employees who attended the dinner. What was the total cost of the dinner?
(1) Each of the k employees who shared the cost of the dinner paid $19.
(2) If the total cost of the dinner had been shared equally by k + 1 of the n employees who attended the dinner, each of the k + 1 employees would have paid $18.

二選項的翻譯是?我看不太懂意思 謝謝!!

[applepeko]

Q26
If the units digit of the three-digit positive integer k is nonzero, what is the tens digit of k?
(1) The tens digit of k + 9 is 3.
(2) The tens digit of k + 4 is 2.

關於這題看了大家的解釋我還不是很懂耶..
條件一 有大大說 10Q+9 之個位 為 3 ==> Q 一定為 4
可是我以為條件1是說k這個數的十位數字加9會等於三
=> Q+9 = 3
然後就一整個錯的離譜...
請問The tens digit of k + 9 is 3究竟是什麼意思???

不好意思我整個蠢 @_@

[chris8888]

Q34
In the xy-plane, what is the slope of line l?
(1) Line l dose not intersect the line with equation y = 1 - x.
(2) Line l intersects the line with equation y = x – 1.

1). 沒有相交, 表示這兩條線無線延伸都不相交, 只有parallel才可能, 根據y = ax + b => y = -x + 1, 斜率the slope= -1
2). 有相交, 但是垂直相交, 活是怎樣香蕉並沒有提及, 有無線種可能相交方式, 無法求出.

答案應該是A

[allen1230]

If the units digit of the three-digit positive integer k is nonzero, what is the tens digit of k?
(1) The tens digit of k + 9 is 3.
(2) The tens digit of k + 4 is 2.

請問一下大大們..
我看過很多這一題的連結
有的大大說答案是(E),有的說答案是(A)-GWD答案也是(A)

但是
The tens digit of k + 9
這個是指1.K的十位數+9呢 (ex. 365 => 6+9)
還是指2.K的十位數+K的個位數+9呢 (ex. 365 => 65 +9)

因為如果是第一個 (D) 都可解

(1) K+9=3 那K的十位數原本就是4 (可解)

(2) K+4=2 那K的十位數原本就是8 (可解)

因為如果是第二個 (A) (1)唯一解

(1) K+9=3 那K的個位數+9,必定進一(因為個位數nonzero)
K的十位數原本必定為2 (唯一解)

(2) K+4=2 那K的個位數+4,不必定進一(因為個位數有可能小於或大於6)
原本K的十位數必定是 2 (因為個位數未進位)
原本K的十位數不一定是2 (因為個位數有進位 8 +4 )

卡在字面上的文字迷思??
The tens digit of k
請問哪位大大能幫我解惑一下呢???>"<

[ang0000]

卡在字面上的文字迷思??
The tens digit of k
請問哪位大大能幫我解惑一下呢???>"< [/quote]



我想在這邊他的翻譯是k+9的十位數是3 ,k+4的十位數是2
有點文字遊戲~~一開始我也很疑惑~也被騙到了~但是仔細看一下be動詞的位置!!

[ang0000]

Q30:
The total cost of an office dinner was shared equally by k of the n employees who attended the dinner. What was the total cost of the dinner?
(1) Each of the k employees who shared the cost of the dinner paid $19.
(2) If the total cost of the dinner had been shared equally by k + 1 of the n employees who attended the dinner, each of the k + 1 employees would have paid $18.

已知 total =kn

(1)kn=kX19 ........無法得知total
(2)kn=(k+1)18....無法得知total
......................................................(1)(2)聯立

可解 故...答案為 C.................................(吧 :P )

不好意思這題小弟還是不解~~was shared equally by k of the n employees who attended the dinner. 的意思是不是n個員工中有參加晚餐的k個員工平均分攤??
為什麼不是(1)total cost=k*19
(2)total cost=(k+1)*18 ---------------答案(D) 呢?
請聰明的大大們解惑!!!感恩唷~~