有没有人可以用英文帮我解释下这个方程这么列At a bake sale,a total of 29 cakes and pies were sold for $283.The price of each cake was $9.50,and the price of each pie was $10.How many cakes and how many pies were sold?9.5x+10(29-x)=
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![有没有人可以用英文帮我解释下这个方程这么列At a bake sale,a total of 29 cakes and pies were sold for $283.The price of each cake was $9.50,and the price of each pie was $10.How many cakes and how many pies were sold?9.5x+10(29-x)=](/uploads/image/z/14325984-0-4.jpg?t=%E6%9C%89%E6%B2%A1%E6%9C%89%E4%BA%BA%E5%8F%AF%E4%BB%A5%E7%94%A8%E8%8B%B1%E6%96%87%E5%B8%AE%E6%88%91%E8%A7%A3%E9%87%8A%E4%B8%8B%E8%BF%99%E4%B8%AA%E6%96%B9%E7%A8%8B%E8%BF%99%E4%B9%88%E5%88%97At+a+bake+sale%2Ca+total+of+29+cakes+and+pies+were+sold+for+%24283.The+price+of+each+cake+was+%249.50%2Cand+the+price+of+each+pie+was+%2410.How+many+cakes+and+how+many+pies+were+sold%3F9.5x%2B10%2829-x%29%3D)
有没有人可以用英文帮我解释下这个方程这么列At a bake sale,a total of 29 cakes and pies were sold for $283.The price of each cake was $9.50,and the price of each pie was $10.How many cakes and how many pies were sold?9.5x+10(29-x)=
有没有人可以用英文帮我解释下这个方程这么列
At a bake sale,a total of 29 cakes and pies were sold for $283.The price of each cake was $9.50,and the price of each pie was $10.How many cakes and how many pies were sold?
9.5x+10(29-x)=283为什么要这么列,
有没有人可以用英文帮我解释下这个方程这么列At a bake sale,a total of 29 cakes and pies were sold for $283.The price of each cake was $9.50,and the price of each pie was $10.How many cakes and how many pies were sold?9.5x+10(29-x)=
这个题目的大致意思是:
一家面包店,现在一共有29蛋糕和派,总计卖了283美元.其中,蛋糕的售价为9.50元/块,派的售价为10元/块.问:蛋糕和派分别有多少块?
设有X块蛋糕,则派有(29-X)块.
9.5乘以X是蛋糕售出的总收入;10乘以(29-X)则是派的总收入.
两者相加得出283的总收入.
所以有:9.5x+10(29-x)=283
计算:9.5X+290-10X=283
-0.5X=-7
X=14
蛋糕有14块,派有15块.