标题: 请教一道数学题 [打印本页] 作者: xrbear57 时间: 2010-2-1 15:36 标题: 请教一道数学题 Q30: Joanna bought only $0.15 stamps and $0.29 stamps. How many $0.15 stamps did she buy? (1) She bought $4.40 worth of stamps. (2) She bought an equal number of $0.15 stamps and $0.29 stamps.