一道数学题,比较大小的.two successive discounts of 20 percent and 40 pe
一道数学题,比较大小的.
two successive discounts of 20 percent and 40 percent are equivalent to a single discount of x percent.比较 x 和 52.
相等）
two successive discounts of 20 percent and 40 percent are equivalent to a single discount of x percent.比较 x 和 52.
相等）
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