甲、乙两数的平均数是5,这两个数的比是5:3,那么乙数是______.
一份是:
5×2÷(5+3),
=10÷8,
=1.25,
乙数是:3×1.25=3.75;
故答案为:3.75.
— Putting on a happy face not only helps us make friends but also makes us feel better.
— ________. [ ]
A. It's my pleasure
B. I'd love to
C. It's up to you
D. I'm with you on that
精梳准备的工艺有()、并卷工艺、条并卷工艺三种。