我们收集了易拉罐和饮料瓶,易拉罐有六个。每个都是0.12元,一共卖了1.8元。饮料瓶,有几个?

2025-03-13 23:01:14
推荐回答(5个)
回答1:

饮料瓶有9个。


解答过程如下:


(1)设饮料瓶有x个,通过易拉罐有6个,每个都是0.12元,一共卖了1.8元。列方程:0.12×6+0.12x=1.8。


(2)0.12×6+0.12x=1.8,这是一个一元一次方程,0.72+0.12x=1.8。解得x=9。


(3)在解0.72+0.12x=1.8,得到x的时候需要用到小数的除法法则。


(4)答:饮料瓶有9个。


扩展资料:


除数是小数的小数除法法则:


1、先看除数中有几位小数,就把被除数的小数点向右移动几位,数位不够的用零补足;


2、然后按照除数是整数的小数除法来除。


列方程解应用题的一般步骤:


1、认真审题,读懂、理解题意。


2、分析问题中的数量关系及相关量之间的联系,寻求等量关系。


3、依据题意选择未知数,根据等量关系列方程。


4、 解方程,求出符合实际问题的答案。

回答2:

求易拉罐卖了多少钱:0.12x6=0.72(元)
再求饮料瓶卖了多少钱:1.8一0.72=1.02(元)
最后求有几个饮料瓶:1.02÷0.12=8.5(个)

回答3:

 

回答4:

 

回答5:

 

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