作业帮紧急!求教英语数学题!
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/15 14:18:31
紧急!求教英语数学题!
1.shop A had 156kg of rice and shop b had 72kg of rice.After each shop sold the same quantity of rice,the amount of rice that shop a had was 4 time that of shop b.How manykilograms of rice did shop a sell?
2.Every minute Machine A prints 12 pages more than Machine B.Machine A and Machine B together print a total of 528 pages in 3 minutes.At this rate,how many pages does Machine B print in 1 mintue?
3.A restaurant had same humber of apples,oranges and pears at first.Arter 38 pears,some apples and oranges were used,there were 90 fruits left.there were twice as many apples as oranges left.The number ofpears left was 15 fewer than the number of apples left.
1.shop A had 156kg of rice and shop b had 72kg of rice.After each shop sold the same quantity of rice,the amount of rice that shop a had was 4 time that of shop b.How manykilograms of rice did shop a sell?
2.Every minute Machine A prints 12 pages more than Machine B.Machine A and Machine B together print a total of 528 pages in 3 minutes.At this rate,how many pages does Machine B print in 1 mintue?
3.A restaurant had same humber of apples,oranges and pears at first.Arter 38 pears,some apples and oranges were used,there were 90 fruits left.there were twice as many apples as oranges left.The number ofpears left was 15 fewer than the number of apples left.
第一题的大致翻译是这样的,A店有156千克大米B店有72千克大米,当两店售出同样多大米后,A店剩下的大米是B店的四倍.问售出多少大米.
可以设B店剩余大米为x,每家店卖出的大米为y.那么A店剩余大米为4x.
所以A店的大米可以这样表示,4x+y=156
B店的大米则表示为,x+y=72
联立方程组解得,x=28 y=44
所以每家店卖出了44千克的大米.
嗯,由于你问的题具有一定挑战性.我就回答一题好了
可以设B店剩余大米为x,每家店卖出的大米为y.那么A店剩余大米为4x.
所以A店的大米可以这样表示,4x+y=156
B店的大米则表示为,x+y=72
联立方程组解得,x=28 y=44
所以每家店卖出了44千克的大米.
嗯,由于你问的题具有一定挑战性.我就回答一题好了