帮忙翻译并作一道数学题

来源:百度知道 编辑:UC知道 时间:2024/06/14 12:03:19
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