Question

七年级数学打折销售应用题...一商品进价3000元,标价4500元,商品要求利润不低于百分之5的销售折出售,最低可打几折

Answer 1

1 (x-3000)/3000=5% x/4500 7折

2 3000/4500 7.5折

3 (3000-x)/3000=5% x/4500 6.3折