中一數學(聽日交!!!!急!!!)10分－百科全書

標題:

中一數學(聽日交!!!!急!!!)10分

發問:

A sum of money is to evenly shared among 10 persons.However,two of them are absent,so each of the 8 attendees gets $30 more.Find the total amount of money. (用方程) THX!!!!

最佳解答:

Let $x be the total amount of money Now, if ten persons are present, then each of them gets = $ x/10 However, two of them are absent, so each of them get = $ x/8 According to the information given, x/10 + 30 = x/8 (x/10 + 30) X 40 = (x/8) X 40 4x + 1200 = 5x x = 1200 So, the total amount of money is $1200

其他解答:

Let $x be the total amount of money Now, if ten persons are present, then each of them gets = $ x/10 However, two of them are absent, so each of them get = $ x/8 According to the information given, x/10 + 30 = x/8 (x/10 + 30) X 40 = (x/8) X 40 4x + 1200 = 5x x = 1200 So, the total amount of money is $1200