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英语翻译Start at 9 and count by 7s until 65.How many numbers are in the sequence?

题目详情
英语翻译
Start at 9 and count by 7s until 65.How many numbers are in the sequence?
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答案和解析
从9开始按7的倍数计数,一直计到65.(从9 到65)这列数中有多少数(7的倍数?
最终意思是指从9到65期间有多少数是7的倍数.