（原文）：The total value of the dimes and quarters in a coin ban

来源：学生作业帮编辑：灵鹊做题网作业帮分类：数学作业时间：2024/04/29 21:16:02

（原文）：
The total value of the dimes and quarters in a coin bank is $3.70.If the quarters were dimes and the dimes were quarters,the total value of the coins would be $4.Find the number of original number of dimes and quarters in the bank.
（经本人翻译）：
在硬币银行里,10分和25分的硬币总额是3.70元.如果这两种硬币的数量是一样的,它们的总额是4元.原来有多少枚10分和25分硬币在银行里?
(原文)：
A collection of 90 pennies,nickels,and dimes has a total value of $2.85.If there are twice as many pennies as there are nickels and dimes combined,how many pennies,dimes,and nickels are there?
(经本人翻译)：
一本收集册里有90枚1分,和一角的硬币总合.如果2倍的一分硬币等于5分和10分硬币的总合.各有多少1分,和一角硬币?
（原文）
A waitress is counting her change.She has a total of 100 nickels,dimes,and quarters with a value of $13.The number of quarters is 10 more than the number of dimes.Find the number of each type of coin.
(经本人翻译)
一位服务员在数她小费的零钱.她一共有100枚硬币.这些硬币面值5分,10分（一角）,硬币的价值是13元.25分的硬币比10分（一角）的硬币多出10枚.每种硬币各有多少?
第一题已经有结果了，→如果这两种硬币的数量是一样的← 翻译错了，应该是 →如果交换两种硬币的数量← 10枚25分

(1)12*0.1+10*0.25=$3.70(2)1分30个,5分和一角共60个,金额2.85-0.3=$2.55,至少有60*0.05=$3.00与If there are twice as many pennies as there are nickels and dimes combined相矛盾换一种理 1分60个,5分和一角共30...

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