[問題] 數學JJ
80.Find greater interest gain @ interest rate=7% A: 6,000, 2年
B: 12,000, 1年 答: A
变体:12% interest rate compounded. Column A: interest gained on $6000
after2 years; Column B:interest gained on 12000$ after 1 year
想問一下原題不是單利嗎?為甚麼是A呢?變體才是複利吧?還是我搞錯了@@
93. 【比大小】–x|x|>0 ColA: square root of (x-10)^2
ColB: (10-x)
ColA和ColB都是正的一樣大吧? 答案給D
161【计算题】3个委员会各有8,10,13个人,问拉一组不同的人三个委员会都有
,最少多少人?答案:24
是因為8x3=24嗎= = 題目看不太懂@@
178 【计算题】Property assesses at 60% of appraised value and taxed at the
rate of 4 dollars per 100 dollars of assessed value. A taxpayer is assessed 240 dollars per quarter in
property taxes, what is appraised value of the property? 答案:40000
官方:(0.6x)*0.04=240/0.25
不懂官方給的解釋...我好笨...
183 【计算题】A rectangle PQRS given with length PQ=17 and width QR=5. T is a
point on RS. What is the probability that QT>13 答案:5/17
想問一下T在RS上那R點和S點都可以吧?那是不是有18種可能?
題目有點多...小弟太弱了...麻煩各位大大好心解答
感謝!!!!!
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.112.243.5
※ 編輯: polarlight00 來自: 140.112.243.5 (07/11 22:41)
推
07/11 22:47, , 1F
07/11 22:47, 1F
推
07/11 22:50, , 2F
07/11 22:50, 2F
推
07/11 22:51, , 3F
07/11 22:51, 3F
所以greater interest是指複利??是從哪裡看出複利的??
推
07/11 22:52, , 4F
07/11 22:52, 4F
→
07/11 22:52, , 5F
07/11 22:52, 5F
推
07/11 22:52, , 6F
07/11 22:52, 6F
→
07/11 22:53, , 7F
07/11 22:53, 7F
感謝這題是我SB
推
07/11 22:57, , 8F
07/11 22:57, 8F
→
07/11 22:58, , 9F
07/11 22:58, 9F
其實我看不太懂題目在問甚麼 為甚麼要從多的開始抓光??
推
07/11 23:00, , 10F
07/11 23:00, 10F
→
07/11 23:01, , 11F
07/11 23:01, 11F
→
07/11 23:02, , 12F
07/11 23:02, 12F
※ 編輯: polarlight00 來自: 140.112.243.5 (07/11 23:05)
→
07/11 23:03, , 13F
07/11 23:03, 13F
推
07/11 23:04, , 14F
07/11 23:04, 14F
→
07/11 23:05, , 15F
07/11 23:05, 15F
→
07/11 23:06, , 16F
07/11 23:06, 16F
推
07/11 23:06, , 17F
07/11 23:06, 17F
→
07/11 23:07, , 18F
07/11 23:07, 18F
※ 編輯: polarlight00 來自: 140.112.243.5 (07/11 23:08)
推
07/11 23:07, , 19F
07/11 23:07, 19F
推
07/11 23:08, , 20F
07/11 23:08, 20F
→
07/11 23:08, , 21F
07/11 23:08, 21F
→
07/11 23:08, , 22F
07/11 23:08, 22F
→
07/11 23:09, , 23F
07/11 23:09, 23F
→
07/11 23:09, , 24F
07/11 23:09, 24F
→
07/11 23:10, , 25F
07/11 23:10, 25F
→
07/11 23:11, , 26F
07/11 23:11, 26F
推
07/11 23:14, , 27F
07/11 23:14, 27F
感謝e大m大p大我終於看懂了!!!
我還是找不到原題哪裡看出是複利的...我知道變體有compounded是複利...但是原題呢??
給p大80有分原題跟變體
※ 編輯: polarlight00 來自: 140.112.243.5 (07/11 23:26)
推
07/11 23:24, , 28F
07/11 23:24, 28F
→
07/11 23:25, , 29F
07/11 23:25, 29F
→
07/11 23:25, , 30F
07/11 23:25, 30F
※ 編輯: polarlight00 來自: 140.112.243.5 (07/11 23:28)
※ 編輯: polarlight00 來自: 140.112.243.5 (07/11 23:28)
推
07/11 23:29, , 31F
07/11 23:29, 31F
→
07/11 23:30, , 32F
07/11 23:30, 32F
→
07/11 23:31, , 33F
07/11 23:31, 33F
恩恩那應該是帶出題目不全吧 一起加油吧感謝你
※ 編輯: polarlight00 來自: 140.112.243.5 (07/11 23:34)
推
07/11 23:37, , 34F
07/11 23:37, 34F
→
07/11 23:38, , 35F
07/11 23:38, 35F
感謝e大的確用機率解比較好懂
※ 編輯: polarlight00 來自: 140.112.243.5 (07/11 23:56)
討論串 (同標題文章)