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A. B. the distance between the two places is 120 km, and the expenses for both the automobile company and the railway company to start transportation business are shown in the table below [unit: yuan / (t · km)] The cost of one kilometer per ton of goods Freight of means of transport [yuan / (t · km)] toll (yuan) handling and management fee (yuan) Car 2 200 0 Train 1.8 0 1400 A customer has a batch of goods to be transported from place a to place B. according to the quality of the goods transported, railway freight transportation costs less. Do you know how many tons the quality of the goods is above?
2*120*T+200>1.8*120*T+1400
T > 50 (ton)
Marine products in a certain area are transported from place a to place B. both automobile freight company and railway freight company operate marine products transportation business. The known transportation distance is 120km, and the speed of automobile and train is 60km / h and 100km / h respectively. The charging items and charging standards of the two freight companies are shown in the table below: transportation cost of means of transportation (yuan / T · km) and refrigeration cost (yuan / T · h) Transportation fee (yuan) handling and management fee (yuan) automobile 25200 train 1.8501600 note: "yuan / T · km" means freight per kilometer per ton of goods; "yuan / T · H" means refrigeration fee per hour per ton of goods. (1) if the wholesaler has 30 tons of seafood to be transported, which shipping company should he choose to save freight? (2) If the wholesaler has 60 tons of seafood to be shipped, which shipping company should he choose? (3) When the wholesaler has many seafood, no matter which one he chooses, it will be the same?
120 △ 60 = 2 (hours), 120 △ 100 = 1.2 (hours). With X tons of seafood, we can see from the title that the car freight can be expressed as: 2 × x × 120 + 5 × x × 2 + 200 = 250x + 200, and the train freight can be expressed as: 1.8 × x × 120 + 5x × 1.2 + 1600 = 222x + 1600
A wholesaler wants to transport a batch of seafood from place a to place B. both automobile freight company and railway freight company operate seafood transportation
The wholesale market wants to transport a batch of seafood from place a to place B. both the automobile freight company and the railway freight company operate the seafood transportation business. The known transportation distance is 120 km, and the speed of the automobile and the train is 60 km / h and 100 km / h respectively. The charging items and charging standards of the two freight companies are shown in the table below:
Transportation vehicle, train, unit price of transportation fee (yuan / T ﹥ 8226; KM), unit price of refrigeration fee (yuan / T ﹥ 8226; H), 200,0 handling and management fee (yuan) 0,1600
If the wholesaler carries 45 tons of seafood, which one is more economical
(1) Car time: 120 / 60 = 2 hours car transport: 2 * 30 * 120 = 7200 yuan car refrigeration: 5 * 30 * 2 = 300 yuan car toll: 200 yuan car handling and management fee: 0 car total cost: 7200 + 300 + 200 + 0 = 7700 yuan train time: 120 / 100 = 1.2 hours train transport: 1.8
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