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A certain ferry transports cars and persons in the cars across a river. The total charge for one trip consists of 2 dollars per car plus 1 dollar for each person in the car. The total charge for one trip for Ann's car and all of the persons in her car is d dollars.
Quantity A
The total number of persons in Ann's car
Quantity B
d-2
C显示答案
· 相关考点
3.3.2 解二元一次方程组与相关应用题
3.3.2 解二元一次方程组与相关应用题
以上解析由 考满分老师提供。
