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1. Next week you have to travel around parts of the country on business and have decided to hire a car from a car-hire company. You have contacted two companies which offer different services. The first company will rent you a car for $125 per day. The second company will charge $80 per day, but with an additional... 顯示更多 1. Next week you have to travel around parts of the country on business and have decided to hire a car from a car-hire company. You have contacted two companies which offer different services. The first company will rent you a car for $125 per day. The second company will charge $80 per day, but with an additional charge of 50 cents per kilometer travelled. You know you will require the car for four days but are unsure of the number of kilometers that you will cover. (a) Determine mathematically what distance you need to cover to make the second company’s charge cheaper. (b) Confirm this using Excel graphs. (c) Both companies now realise that they will need to add 10% GST to the charge for the daily car hire, but not to the charge for the kilometres covered. How will this affect your decision? Justify your answer with both the calculations and Excel graphs. 不明白怎樣做excel,請幫忙!! 請各高手多多幫忙,感激萬分.
最佳解答:
(a) Let you travelled x km in four days Then if the second company’s charge cheaper. 80*4+0.5x<125*4 320+0.5x<500 0.5x<180 x<360 So, the number of kilometers that I will cover should be less than 360 km (b) Just using the following data to draw the graph Distance Money 100 370 110 375 120 380 130 385 140 390 150 395 160 400 170 405 180 410 190 415 200 420 210 425 220 430 230 435 240 440 250 445 260 450 270 455 280 460 290 465 300 470 310 475 320 480 330 485 340 490 350 495 360 500 370 505 380 510 390 515 400 520 Comfirm that if the distance is larger than 360 km, then the second one is more expensive (c) For plan 1, the total charge becomes 125*1.1*4=550 For plan 1, the total charge becomes 80*1.1*4+0.5x=352+0.5x Let 352+0.5x<500 x<296 So the number of kilometers that I will cover should be less than 296 km 2009-01-27 19:32:18 補充： X<396 for (c)
其他解答:
我的名字is raymond li 我有網站可以賺錢和創業。 www.money128.biz和www.fast - beauty.6289.us 我還有美容產品可以免費試用詳情 請發送電子郵件給我。 sai80002003@yahoo.com.hk 感謝你。4E350C6F8B48ECA2
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statistics 不識做,pls help!!急!!發問:
1. Next week you have to travel around parts of the country on business and have decided to hire a car from a car-hire company. You have contacted two companies which offer different services. The first company will rent you a car for $125 per day. The second company will charge $80 per day, but with an additional... 顯示更多 1. Next week you have to travel around parts of the country on business and have decided to hire a car from a car-hire company. You have contacted two companies which offer different services. The first company will rent you a car for $125 per day. The second company will charge $80 per day, but with an additional charge of 50 cents per kilometer travelled. You know you will require the car for four days but are unsure of the number of kilometers that you will cover. (a) Determine mathematically what distance you need to cover to make the second company’s charge cheaper. (b) Confirm this using Excel graphs. (c) Both companies now realise that they will need to add 10% GST to the charge for the daily car hire, but not to the charge for the kilometres covered. How will this affect your decision? Justify your answer with both the calculations and Excel graphs. 不明白怎樣做excel,請幫忙!! 請各高手多多幫忙,感激萬分.
最佳解答:
(a) Let you travelled x km in four days Then if the second company’s charge cheaper. 80*4+0.5x<125*4 320+0.5x<500 0.5x<180 x<360 So, the number of kilometers that I will cover should be less than 360 km (b) Just using the following data to draw the graph Distance Money 100 370 110 375 120 380 130 385 140 390 150 395 160 400 170 405 180 410 190 415 200 420 210 425 220 430 230 435 240 440 250 445 260 450 270 455 280 460 290 465 300 470 310 475 320 480 330 485 340 490 350 495 360 500 370 505 380 510 390 515 400 520 Comfirm that if the distance is larger than 360 km, then the second one is more expensive (c) For plan 1, the total charge becomes 125*1.1*4=550 For plan 1, the total charge becomes 80*1.1*4+0.5x=352+0.5x Let 352+0.5x<500 x<296 So the number of kilometers that I will cover should be less than 296 km 2009-01-27 19:32:18 補充： X<396 for (c)
其他解答:
我的名字is raymond li 我有網站可以賺錢和創業。 www.money128.biz和www.fast - beauty.6289.us 我還有美容產品可以免費試用詳情 請發送電子郵件給我。 sai80002003@yahoo.com.hk 感謝你。4E350C6F8B48ECA2
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