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英语翻译1 which number should replace the question mark?3 4 8 61

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英语翻译
1 which number should replace the question mark?
3 4 8 6
1 9 4 2
2 7 3 9
1 6 7
two women were doing shopping,one spent $10 more than the other,and they spent $40 all together.how much did each of them spend?
3 fill in the missing number and letter
A F 11
C 7 J
1问号处填什么数字?
两个女人一起购物,一个花的比别一个多10元,总共花了40元.每个人各花了多少钱?
填入缺少的字母和数字.
再问: 要解答,谢谢
再答: 第2题 15元和25元 其他不会.
再问: 算式
再答: x+(x+10)=40 2x=30 x=15 x+10=25