a+c=2b=70
ab-bc=280 ====> a-c=8
解得a=39,c=31
a、b、c是从大到小排列三个数,a-b=b-c,前面两个数的积与后面两个数积之差是280,如果b=35,那么c是多少
a、b、c是从大到小排列三个数,a-b=b-c,前面两个数的积与后面两个数积之差是280,如果b=35,那么c是多少
数学人气：935 ℃时间：2020-03-27 05:48:06
优质解答
我来回答
类似推荐
猜你喜欢
- 1His father and he are talking about his school life.
- 2What's the chinese for the following sentens:
- 3what size shorts would you like i`d like _____ ones.1.large 2.a medium 3.white
- 4I think three fourths of the materials I listened to at the beginning of the exam are easy.意思
- 5nearby 和 near by 可以替换不,有啥区别?
- 6在等比数列{an}中，存在正整数m，有am=3，am+5=24，则am+15=_．
- 7A=4,B=3,焦点在x轴上的双曲线方程
- 8硫化氢的化学式怎么写?
- 9She want to ____them under the tap怎么翻译
- 10甲乙两车同时从A地开往B地,甲车每小时行65千米,乙车每小时行42千米乙车先行2小时后甲车再出发,再经过几小