The marked price of a sofa is 3000.If the sofa is sold at 26％ off.then a merchant can a profit of 48
题目
The marked price of a sofa is 3000.If the sofa is sold at 26％ off.then a merchant can a profit of 48％.
a)find the selling price of the sofa
b) find the cost of the sofa
答案
a）3000*（1-0.26）=2220
b）2220*（1-0.48）=1154.4
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
热门考点