Question

帮忙翻译并作一道英文数学题

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.

请给我详细说明和做题步骤 谢谢

Answer 1

有变量q,x,y，以及比例常数k，试求函数表达式，并确定k值。条件是q与x,y之和成反比。且当x=1,y=1.8时，q=2.9。
the formula can be written as , q=k/(x+y)
so k=q(x+y)=2.9(1+1.8)=8.12