问一个英语的数学问题:(请帮个忙~)下补充~
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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 radius 45mm?b.What is the radius (to 3s.f.)of the bottle which costs $1?
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 radius 45mm?b.What is the radius (to 3s.f.)of the bottle which costs $1?
![问一个英语的数学问题:(请帮个忙~)下补充~](/uploads/image/z/7753230-54-0.jpg?t=%E9%97%AE%E4%B8%80%E4%B8%AA%E8%8B%B1%E8%AF%AD%E7%9A%84%E6%95%B0%E5%AD%A6%E9%97%AE%E9%A2%98%EF%BC%9A%EF%BC%88%E8%AF%B7%E5%B8%AE%E4%B8%AA%E5%BF%99%7E%EF%BC%89%E4%B8%8B%E8%A1%A5%E5%85%85%7E)
还挺难.用汉语说吧.价格于体积成比例,也就是与半径的三次方成比例.
半径比是1.25,体积比是1.9多.
b问题你应该会了吧
半径比是1.25,体积比是1.9多.
b问题你应该会了吧