假定一个消费者在每一杯咖啡里总是加2匙糖。如果每匙糖的价格为p1每杯咖啡的价格为p2,
假定一个消费者在每一杯咖啡里总是加2匙糖。如果每匙糖的价格为p1
每杯咖啡的价格为p2,消费者花费在咖啡和糖上的总额为m美元,那么,他打
算分别购买多少咖啡和糖?
Suppose that a consumer always consumes 2 spoons of sugar with each cup of coffee.If the price of sugar is piper spoonful and the price of coffee is p1per cup and the consumer has m dollars to spend on coffee and sugar,how much will he or she want to purchase?