英语翻译Jack is twice as old as Jill,but in five years time he will only be one and a half times as old as Jill.How old are Jack and Jill now?

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英语翻译Jack is twice as old as Jill,but in five years time he will only be one and a half times as old as Jill.How old are Jack and Jill now?

英语翻译Jack is twice as old as Jill,but in five years time he will only be one and a half times as old as Jill.How old are Jack and Jill now?
英语翻译
Jack is twice as old as Jill,but in five years time he will only be one and a half times as old as Jill.How old are Jack and Jill now?

英语翻译Jack is twice as old as Jill,but in five years time he will only be one and a half times as old as Jill.How old are Jack and Jill now?
翻译过来是:Jack的岁数是Jill的两倍,但是5年后Jack的岁数将是Jill的1.5倍.现在Jack和Jill多大.
我们可以设jack的岁数为x,Jill的岁数为y,于是
x=2y
x+5=1.5×(y+5)
解这两个方程可得x=10,y=5.
所以Jack现在10岁,Jill现在5岁

杰克的年龄是吉尔的两倍,但是五年后他的年龄仅仅是吉尔的一点五倍,那么现在杰克和吉尔各是多少岁?
列二元一次方程组,可得杰克10岁,吉尔5岁
The answer is that jack is 10 years old and Jill is 5years old.

杰克的年龄是吉尔的两倍,但是五年后他的年龄仅仅是吉尔的一点五倍,那么现在杰克和吉尔各是多少岁?

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