答案
解:在A市乘出租车x(x>3)千米的价钱为:[10+1.2(x-3)]元;
在B市乘出租车x(x>3)千米的价钱为:[8+1.4(x-3)]元.
故A、B两市乘坐出租车x(x>3)千米的价差是:[10+1.2(x-3)]-[8+1.4(x-3)]
=(2.6-0.2x)元.
解:在A市乘出租车x(x>3)千米的价钱为:[10+1.2(x-3)]元;
在B市乘出租车x(x>3)千米的价钱为:[8+1.4(x-3)]元.
故A、B两市乘坐出租车x(x>3)千米的价差是:[10+1.2(x-3)]-[8+1.4(x-3)]
=(2.6-0.2x)元.