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平時我自己上網搜尋資料就還蠻喜歡看 【新風尚潮流】 TOTOLINK 16埠 家用 乙太網路 交換器 10/100 Switch HUB SW16

的

因為可以一網打盡真的是太方便!!!!!

就算沒買過肯定逛過聽過看過 【新風尚潮流】 TOTOLINK 16埠 家用 乙太網路 交換器 10/100 Switch HUB SW16

吧!!!

【新風尚潮流】 TOTOLINK 16埠 家用 乙太網路 交換器 10/100 Switch HUB SW16

功能:

【新風尚潮流】 TOTOLINK 16埠 家用 乙太網路 交換器 10/100 Switch HUB SW16

描述:

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資料來源：富基電通、TOTOLINK(台灣吉翁電子) ※商品圖檔顏色因電腦螢幕設定差異會略有不同，以實際商品顏色為準 ※以上規格資料若有任何錯誤，以原廠所公佈資料為準。

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標題:

幚我做幾條數(20分)

發問:

5.A shopkeeper sold a watch for $360 at a loss of 10%. In order to compensate for the lost, he sold the second watch of the same kind at a profit of 15%. How much did he gain as a whole?6.Mr. Chan is salesman. He receives a basic salary of $1000 per month plus a commission of 5% of his sales. The total sale... 顯示更多 5.A shopkeeper sold a watch for $360 at a loss of 10%. In order to compensate for the lost, he sold the second watch of the same kind at a profit of 15%. How much did he gain as a whole? 6.Mr. Chan is salesman. He receives a basic salary of $1000 per month plus a commission of 5% of his sales. The total sale last month was $25000. What was Mr. Chan’s income last month? 7.20% of the 200 Form 1 pupils in a school wear eye glasses. Of those who wear eye glasses, 40% were girls. Find the number of girls who wear eye glasses. 8.A sum of $16000 is invested in such a way that part of it receives interest at 6% p.a. and the remainder at 7% p.a. The total interest in one year from the investments is $1010. What are the two investments?

最佳解答:

5. The cost price is $360 / ( 1 - 10% ) = $400 The lost is $400 - $360 = $40 The profit of the second watch is $400 x 15% = $60 As a whole, he gains $60 - $40 = $20 6. The commission is $25000 x 5% = $1250 Mr. Chan's income last month was $1000 + $1250 = $2250 7. No. of pupils wearing glasses is 200 x 20% = 40 The number of girls who wear eye glasses is 40 x 40% = 16 8. Let one of the investments be $X (which receives interest at 6% p.a.) X x 6% + ( 16000 - X ) x 7% = 1010 0.06X + 1120 - 0.07X = 1010 0.01X = 1120 - 1010 X = 11000 The two investments are $11000 and $5000

其他解答:

(5) The original price of watch = 360/(1-10%) = 400 The price of second watch = 400 (1+15%) = 460 total price of two watches = 360 + 460 = 820 total gain = 820 - (2 x 400) = 20 (6) comission of last month = 25000 x 5% = 1250 Mr. Chan's income in last month = 1000 + 1250 = 2250 (7) Number of pupils wear glasses = 200 x 20% = 40 Number of girls wear glasses = 40 x 40% = 16 (8) let x be part of the sum of money x(6%) + (16000 - x)(7%) = 1010 1120 - 0.01x =1010 0.01x = 110 x = $11000 $11000 invests with interest 6%p.a. $5000 invests with interest 7% p.a.

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