英语翻译The total daily cost c,in dollars,of producing x units of a certain product is given by the function c(x)=k/5,where k is a constant (4x+1200)/x.If 20 units were produced yesterday for a total cost of $640,what is the value of 答案是50,

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英语翻译The total daily cost c,in dollars,of producing x units of a certain product is given by the function c(x)=k/5,where k is a constant (4x+1200)/x.If 20 units were produced yesterday for a total cost of $640,what is the value of 答案是50,
英语翻译
The total daily cost c,in dollars,of producing x units of a certain product is given by the function c(x)=k/5,
where k is a constant (4x+1200)/x.If 20 units were produced yesterday for a total cost of $640,what is the value of
答案是50,求翻译及解题过程

英语翻译The total daily cost c,in dollars,of producing x units of a certain product is given by the function c(x)=k/5,where k is a constant (4x+1200)/x.If 20 units were produced yesterday for a total cost of $640,what is the value of 答案是50,
额,我也觉得where```那句话不太通··是常数为什么还有变量x影响呢?应该就是640*5=3200吧,不知道答案是不是这样的,SAT数学有时候就是这样不用想太多的吧····

生产x件某产品的花费是c，c=k/5，k=(4x+1200)/x
如果昨天生产了20件，用了640元，k等于多少
我觉得你的问题好像打错了，算不出
我觉得where k is a constant (4x+1200)/x，不是特别通

英语翻译The total daily cost c,in dollars,of producing x units of a certain product is given by the function c(x)=k/5,where k is a constant (4x+1200)/x.If 20 units were produced yesterday for a total cost of $640,what is the value of 答案是50, the daily the daily the daily 英语翻译In an email exchange between the two offices,Mr Rudd's chief of staff was told to keep accommodation costs to a minimum,after noting the total estimated cost of one trip alone would be $77,607,The Daily Telegraph reported. 英语翻译Dat Viet Daily So the total bad 英语翻译：The total dimensions of the carton must not allow the garments to shift. On the daily THE DAILY怎么样 The Daily Dose是什么意思? The Daily Telegraph是什么意思 online shopping is increasingly popular;by sep.2011,the total daily sales at taobao___had amounted to 935 million yuan,which had even overtaken the daily total sales of hongkongA just B only C merelyD alone那C不就是仅仅的意思吗不能翻译 英语翻译Thanks for the order,the total comes to $108.90.Please call in your credit card. 英语翻译percent abundance elative abundance otal the indidual percent abundances he indicidual relative abundances elative mass 英语翻译The difference between arrivals and departures each year shown as a Percentage of the Total Movement each year (Movement divided by Difference:for both Visitor and Total categories) The Total Decrease or Increase in the number of 英语翻译用in total 句型 英语翻译Total inlet怎么翻译