f1 bab 7 mm

Question

Lina bought x metres of cloth at RM6 per metre. She paid RM50 and received more than RM2 as charge. Write an inequality for x.

我是直接6x<50, 不知道对吗? 如果能够，请附上你的解题思路，谢谢你们

Answer 1

6x<50 也没有错，但是你忽略了 received more than RM2 as change 这句。Lina 付 RM50，找回多过 RM2 的钱。比较准确的答案是：

50 - 6x > 2

可以简化成，

- 6x > -48

x > 8

Comments

喔，明白了，感谢