论文部分内容阅读
例某水果商从海口市收购香蕉60吨,从高州市收购香蕉120吨.现要销往北京100吨,沈阳80吨(全部用汽车运输).已知从海口运一吨香蕉到北京和沈阳分别需,1000元和1300元从高州运一吨香蕉到北京和沈阳分别需800元和1000元;(1)设从海口运往北京x吨,求总运费y(元)关于x(吨)的函数关系式;
For example, a fruit trader bought 60 tons of bananas from Haikou and 120 tons of bananas from Gaozhou, now sold to 100 tons in Beijing and 80 tons in Shenyang (all transported by car). It is known that one ton of bananas are transported from Haikou to Beijing and Shenyang (1) Supplying x ton from seaport to Beijing, seeking the total freight y (yuan) About x (ton) Function