试题与答案

有一容量为180升的太阳能热水器,设其工作时间为y(分),每分钟的排水量为x(升

题型:解答题

题目:

有一容量为180升的太阳能热水器,设其工作时间为y(分),每分钟的排水量为x(升).

(1)写出y与x之间的函数关系式;

(2)若热水器可连续工作的最长时间为1小时,求自变量x的取值范围;

(3)若每分钟排放热水4升,则热水器不间断工作的时间为多少?

答案:

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