英语翻译Express the statement as a formula that involves the var

来源：学生作业帮编辑：神马作文网作业帮分类：数学作业时间：2024/09/30 07:31:39

英语翻译
Express the statement as a formula that involves the variables q,x,y and a constant of proportionality k,and then determine the value of k from the condition :q is inversely proportional to the sum of x and y,if x = 1 and y = 1.8,then q = 2.9
Please enter your answer as the value of k.

将一个关系表达成一个方程,方程中有q,x,y这三个变量和比例系数k,请在下述情况下确定k的值：q与xy之和成反比的关系,并且当x=1,y=1.8时,有q=2.9
请输入k的值作为你的答案.
我的理解是这样的.（就是个填空题.解答就不用拿英文写了吧.）
根据题目的关系,方程应该是这样的：
q=k/(x+y).q与xy之和成反比..k是比例系数..
然后把xyq代进去就好了...
k=(1+1.8)*2.9=8.12

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