懂英语和数学的来!求算式!A model ship is sold for $225 at a loss of 25%.How m_数学解答

懂英语和数学的来!求算式!
A model ship is sold for $225 at a loss of 25%.How much does it cost?

人气：112 ℃　时间：2020-05-18 23:15:09

解答

一个模型船卖225美元,亏损了25％.它成本为多少钱?
225÷（1-25%）=300
方程：设成本为X元,依题意,得
（1-25%）X=225
X=300