作业帮一条英语数学题Johnny bought some foods in a supermarket.Johnny paid $41 for 6packs of biscuits and 2 bags of potato chips.If $11.5 is needed for 1 pack of biscuits and 1bag of potato chips,what are the price of a pack of biscuits and the price
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一条英语数学题Johnny bought some foods in a supermarket.Johnny paid $41 for 6packs of biscuits and 2 bags of potato chips.If $11.5 is needed for 1 pack of biscuits and 1bag of potato chips,what are the price of a pack of biscuits and the price
一条英语数学题
Johnny bought some foods in a supermarket.Johnny paid $41 for 6packs of biscuits and 2 bags of potato chips.If $11.5 is needed for 1 pack of biscuits and 1bag of potato chips,what are the price of a pack of biscuits and the price of a bag of potato chips.
一条英语数学题Johnny bought some foods in a supermarket.Johnny paid $41 for 6packs of biscuits and 2 bags of potato chips.If $11.5 is needed for 1 pack of biscuits and 1bag of potato chips,what are the price of a pack of biscuits and the price
X:1 pack of biscuits' price Y:1 pack of potato chips' price
6X+2Y=41
X+Y=11.5
Solve it :X=4.5 Y=7
the price of a pack of biscuits is 4.5$ and the price of a bag of potato chips is 7$
6 packs of biscuits +2 bags of potato chips=$41
1 pack of biscuits +1bag of potato chips=$11.5
1 pack of biscuits =$4.5
1bag of potato chips=$7
$4.5 is needed for 1 pack of biscuits and $7 is needed for 1 bag of potato chips.
假设1 pack of biscuits =x
1bag of potato chips=y
则：6x+2y=41
x+y=11.5 x=4.5 , y=7
乔尼在超市买了些食物。乔尼花了41美元买了6袋小面包和2包薯条。如果1袋小面包和1包薯条需要11.5美元，那么1袋小面包和1包薯条的价格各是多少
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36 要先想象一下图 64/2-2=30这就是中间正方形的边长 30*30=900（m ）
the price of a pack of biscuits is 4.5
the price of a bag of potato chips is 7.
大意是：johnny去超市买一些吃的。他买了6包小饼干和2袋薯条共花了41美元；一包小饼干和一袋薯条需要11.5美元，问，小饼干和薯条的单价是多少？
设小饼干的单价为 x ，薯条的单价为 y 。则
6 x +2 y =41
x + y =11.5
解得
x =4.5美元
y =7美元...
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大意是：johnny去超市买一些吃的。他买了6包小饼干和2袋薯条共花了41美元；一包小饼干和一袋薯条需要11.5美元，问，小饼干和薯条的单价是多少？
设小饼干的单价为 x ，薯条的单价为 y 。则
6 x +2 y =41
x + y =11.5
解得
x =4.5美元
y =7美元
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