甲、乙两个工程队合修一条公路,计划每天修50米,30天修完.实际每天多修10米,实际多少天可以修完?(用方程解)
解:设实际x天修完,由此可得方程:
(50+10)x=50×30.
60x=1500
x=25
答:实际25天可以修完。
I visited many places including the History Museum last Saturday. When I _______ at the hotel, it was very late.
华北大地四季分明,初春阳光普照,冰雪融化,我们仍感到“春寒料峭,咋暖还寒”冬季大地封冻,雪花飞舞,人们常说“冰冻三尺,非一日之寒”“下雪不冷,化雪冷”等谚语。请你回答