=) The sum of two consecutive even numbers is greater than 17.
Find the minimum value of the larger number.
=)For two consecutive multiples of 4,the larger number is less than twice of the smaller one by at least 16.Find the minimum valus of two numbers.
Two questions .Thanks =)`
Inequalities
2009-03-11 2:48 am
回答 (1)
2009-03-11 3:15 am
✔ 最佳答案
1.Let the two consecutive even numbers be x and (x+2)
x+(x+2)>17
2x+2>17
2x>15
x>7.5
so the minimum value of x is 8
Thus , the two consecutive even numbers are 8 and 10
2.
Let the two consecutive multiples of 4 be 4x and 4(x+1)
2(4x)-4(x+1)≥16
8x-4x-4≥16
4x-4≥16
4x≥20
x≥5
The minimum valus of x is 5
So the minimum valus of two numbers is 20.24
收錄日期: 2021-04-22 00:37:22
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090310000051KK01221