举个例子.5的三倍就是5*3,是15
6的四倍就是6*4,是24
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- 1英语口语 talk about your school
- 2it's necessary for us to have healthy eating
- 3甲,乙,丙三人存款的平均数是4500元,已知甲和乙的存款数之比是4:3,丙存款数比甲多300元,甲存了几元?
- 4一元一次方程3X=2X+5
- 5tom is sitting _____ a tree and playing with his cat
- 65 7 7 11算24点,运用加减乘除符号和小括号等于24
- 7Read the dialogue and answer the questions.
- 8在△ABC中,cosA=35且cosB=513,则cosC等于( ) A.-3365 B.3365 C.-6365 D.6365
- 9如图,两个平行四边形A、B有一部分重叠在一起,重叠部分C的面积是平行四边形A的面积的七分之三,是平行四边
- 10should sandy look after…… ? 现在要回答,应该怎么回答