SAT问题：Milk costs x cents per half-gallon and y cents per gallon. If a gallon of milk costs z cMilk costs x cents per half-gallon and y cents per gallon. If a gallon of milk costs z cents less than 2 half-gallons, which of the following equation

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SAT问题：Milk costs x cents per half-gallon and y cents per gallon. If a gallon of milk costs z cMilk costs x cents per half-gallon and y cents per gallon. If a gallon of milk costs z cents less than 2 half-gallons, which of the following equation
SAT问题：Milk costs x cents per half-gallon and y cents per gallon. If a gallon of milk costs z c
Milk costs x cents per half-gallon and y cents per gallon. If a gallon of milk costs z cents less than 2 half-gallons, which of the following equations must be true?

A. x – 2y + z = 0
B. 2x – y + z = 0
C. x – y – z = 0
D. 2x – y – z = 0
E. x + 2y – z = 0
which is right?

SAT问题：Milk costs x cents per half-gallon and y cents per gallon. If a gallon of milk costs z cMilk costs x cents per half-gallon and y cents per gallon. If a gallon of milk costs z cents less than 2 half-gallons, which of the following equation
a gallon of milk costs y cents.
2 half gallons cost 2x cents.
a gallon costs z cents less than 2 half-gallons,therefore:
y=2x-z
移项,D正确.
注：一加仑花的钱不一定是半个加仑的两倍（这就好比我们买大包的薯片一般单位净重的单价会便宜一样）

根据题意 y=2x-z 即 2x – y – z = 0所以答案是 D. 2x – y – z = 0

SAT问题：Milk costs x cents per half-gallon and y cents per gallon. If a gallon of milk costs z cMilk costs x cents per half-gallon and y cents per gallon. If a gallon of milk costs z cents less than 2 half-gallons, which of the following equation if coke costs 74p,milk costs 63p,and beer costs 78p,what does lime cost? 问一个英语的数学问题：（请帮个忙~）下补充~The cost of similar bottles of milk is proportional to the volume.A bottle which has a radius of 36mm costs 75c.Question:a.What is the price (to the nearest cent)of the bottle with a radiu SAT数学题,求翻译和讲解A rectangular floor 18 feet by 10 feet is to be completely covered with carpeting that costs x dollars per square yard. In terms of x, how many dollars will the carpeting cost? (1 yard=3 feet)A 20x B 28x C 60 SAT世界历史问题一道为什么是C不是D? This kind of milk costs so __these days that I buy some .选哪一个cheap ,little do the benefits of technology always outweight the costs?SAT essay SAT语法 C错哪? milk milk 英语翻译The company’s costs of quality failures are divided intotwo major items:costs of handling and costs of rework.Uponcompletion ofthe project,if thevegetation isnot sat-isfactory after 100 days,the clients may orally and/or for-mally lodge 谁能回答,what is the difference between fixed costs and constant costs?不是翻译,是个问题.谢谢. SAT数学题 Function f is defined by f(x)=(x-a)(x-b)/(x-c),where 0 一道sat数学题正解c SAT CR!C选项翻译 sat math看图 ------------------ x SAT语法真题求解!1.(A significant factor)A to include in the budget when (buying)B a car are the (costs of)c fuel and maintenance and the (insurance payments)D. No errorA哪错了?应该怎么改? Sat关于角的问题.看不懂.