[計量] 兩題數學(題目不懂)

看板GRE (GRE入學考試)作者 (信箱爆炸..XD)時間16年前 (2010/02/17 18:58), 編輯推噓3(309)
留言12則, 6人參與, 7年前最新討論串1/2 (看更多)
1. Which of the following quations can be used to find the value of x if 8 more than 9x is 3 times the sum of 6 and x? ~~~~~~~~~~~~~~~~ 這句不是8大於9x的值? Ans: 9x+8=3(x+6) 2. Of the positive integers that are multiples of 30 and are less than or equal to 360, what fraction are multiples of 12? Ans:1/2 謝謝大家~~ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 218.169.54.27

02/17 19:05, , 1F
比9x多8的意思
02/17 19:05, 1F

02/17 22:51, , 2F
就是 9x+8 啦
02/17 22:51, 2F

02/17 22:53, , 3F
第二題是說 某正整數乘上30結果小於等於360的情況裡
02/17 22:53, 3F

02/17 22:54, , 4F
那些可能的值中 是12的倍數所佔的比例是多少
02/17 22:54, 4F

02/17 22:57, , 5F
我發現我說錯了 = ='' 重新說一變
02/17 22:57, 5F

02/17 22:58, , 6F
這題就是要問是360以下 三十的倍數也是十二的倍數佔
02/17 22:58, 6F

02/17 22:59, , 7F
三十的倍數的比率
02/17 22:59, 7F

02/17 23:24, , 8F
謝謝
02/17 23:24, 8F

03/29 02:14, , 9F
8 more than 9x is 3 times the sum of 6 and x :
03/29 02:14, 9F

03/29 02:17, , 10F
(8 + 9x) = 3 * (6 + x)
03/29 02:17, 10F

12/02 19:06, , 11F
12/02 19:06, 11F

04/13 23:34, 7年前 , 12F
04/13 23:34, 12F
文章代碼(AID): #1BUylmE- (GRE)
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文章代碼(AID): #1BUylmE- (GRE)