Walt considers x and y to be perfect substitutes. They originally cost 10 and 9 respectively. His income is 720. One day the price of x drops to 8. Which of the following is true?
举一反三
- .某消费者效用函数为U=X+Y ,下列哪个组合在无差异曲线上 A: X=10,Y=10和X=8,Y=12 B: X=8,Y=18和X=9,Y=9 C: X=10,Y=10和X=10,Y=12 D: X=l0,Y=10和X=8,Y=10
- Walt consumes strawberries and cream but only in the fixed ratio of three boxes of strawber ries to two cartons of cream. At any other ratio, the excess goods are totally useless to him. The cost of a box of strawberries is 10 and the cost of a carton of cream is 10. Walt's income is 200.Which of the following is true?
- int x=9; if(x>8 and x<10) System.out.println("true"); 以上语句运行的结果是显示true。
- Matt's utility function is min{x，4y + 5z}. The price of x is 1, the price of y is 4, and the price of z is 7. Matt's income is 8. How many units of x does Matt demand? A: 4 B: 7 C: 3.33 D: 5
- 某个消费者效用函数为U=X+Y，下列（ ） 组合在同一条无差异曲线上。 A: X=10, Y=10和X=10，Y=13 B: X=8, Y=18和X=9，Y=10 C: X=10, Y=10和X=8, Y=10 D: X=10, Y=10和X=8, Y=12