80%(10+62.5%A) / 5.5 =2A- 8 / 11
請列出步驟、答案等(詳細D)
數學方程一問(急用......)
2008-07-15 11:17 pm
回答 (4)
2008-07-27 8:20 am
2A-8/11
3個答案都寫成(2A-8)/11
想投票都唔得......................................
3個答案都寫成(2A-8)/11
想投票都唔得......................................
2008-07-22 11:24 pm
80% = 0.8, 62.5% = 0.625
(0.8)(10+0.625A)/5.5 = 2A- 8/11
(4/5)(10+5A/8)/(11/2) = 2A- 8/11
(8/55)(10+5A/8) = 2A - 8/11
16/11 + A/11 = 2A - 8/11
24/11 = 24A/11
A = 1
(0.8)(10+0.625A)/5.5 = 2A- 8/11
(4/5)(10+5A/8)/(11/2) = 2A- 8/11
(8/55)(10+5A/8) = 2A - 8/11
16/11 + A/11 = 2A - 8/11
24/11 = 24A/11
A = 1
2008-07-18 8:13 pm
80%(10+62.5%A)/5.5=2A-8/11
0.8(10+0.625A)/5.5=2A-8/11
1.6(10+0.625A)=2A-8
16+A=2A-8
16+8=2A-A
A=24
0.8(10+0.625A)/5.5=2A-8/11
1.6(10+0.625A)=2A-8
16+A=2A-8
16+8=2A-A
A=24
2008-07-15 11:35 pm
80%(10+62.8%A)/5.5=(2A-8)/11
(0.8)(10+0.628A)/5.5=(2A-8)/11
88+5.5264A=11A-44
132=5.4736A
A=24.1//
(0.8)(10+0.628A)/5.5=(2A-8)/11
88+5.5264A=11A-44
132=5.4736A
A=24.1//
收錄日期: 2021-04-23 18:01:41
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080715000051KK01460