UC知道英语题，数学函数题，请教！好，快，追加！
来源：百度知道 编辑：UC知道 时间：2024/06/09 05:20:11
数学：张大伯某日从报社以每份0.4元价格购进x份报纸，以每份0.5元价格售出b份（b<x）,
则剩下以0.2元每份退回报社，则张大伯该日的收入y元与x份的函数关系为？？
英语：
句式转 换。
1,the boy is too young, so he can not
look after himself.
the boy can not ( )（ )( )himself，because he is too young.
2.翻译
(1)Some children are very sick and cannot go to school.
(2)Home schooling sounds easy, but it is really not.
(3)我每周去游泳3次或4次
则剩下以0.2元每份退回报社，则张大伯该日的收入y元与x份的函数关系为？？
英语：
句式转 换。
1,the boy is too young, so he can not
look after himself.
the boy can not ( )（ )( )himself，because he is too young.
2.翻译
(1)Some children are very sick and cannot go to school.
(2)Home schooling sounds easy, but it is really not.
(3)我每周去游泳3次或4次
数学
y=0.5b+0.2*(x-b)-0.4x 化简后y=0.3b-0.2x
英语
1.take care of
翻译
1.一些孩子生病了所以不能去上学。
2.家庭教育听起来很简单，但是它实际很难。
3.I go to swimming 3 or 4 times every week.