我想問幾就係以下
q1 [(+8.4)-(-14.8)除(+3.7)]除(-3.1)
中一數學呀 (十萬火急幫幫忙)
2008-01-01 4:58 am
回答 (5)
2008-01-01 10:04 pm
((8.4)-(-14.8)/(3.7))3.1
=(8.4+14.8/3.7)3.1
=(8.4+4)3.1
=12.4/3.1
=4
ANs is 4
=(8.4+14.8/3.7)3.1
=(8.4+4)3.1
=12.4/3.1
=4
ANs is 4
參考: me
2008-01-01 5:11 am
先剩除後加減
所以先-14.8除3.7=(-4)再除(-3.1)之後係1.290322581
剩除之後再8.4-1.2903=-7.109677419
2007-12-31 21:12:16 補充：
sorry個答案打多咗個負號正確答案係 7.109677419
2007-12-31 21:14:19 補充：
留意唔到個中括號...-.-[( 8.4)-(-14.8)/( 3.7)] / (-3.1) -14.8/3.7=-48.4-(-4) = 8.4 4 = 12.412.4 / -3.1 = -4
所以先-14.8除3.7=(-4)再除(-3.1)之後係1.290322581
剩除之後再8.4-1.2903=-7.109677419
2007-12-31 21:12:16 補充：
sorry個答案打多咗個負號正確答案係 7.109677419
2007-12-31 21:14:19 補充：
留意唔到個中括號...-.-[( 8.4)-(-14.8)/( 3.7)] / (-3.1) -14.8/3.7=-48.4-(-4) = 8.4 4 = 12.412.4 / -3.1 = -4
2008-01-01 5:09 am
[(+8.4)-(-14.8)除(+3.7)]除(-3.1)
=[(+8.4)-(-4)]/(-3.1)
=(8.4+4)/(-3.1)
=12.4/(-3.1)
=-4
p.s除=/
=[(+8.4)-(-4)]/(-3.1)
=(8.4+4)/(-3.1)
=12.4/(-3.1)
=-4
p.s除=/
參考: Me
2008-01-01 5:09 am
I think is
-7.1
-7.1
2008-01-01 5:04 am
-2.022668
2007-12-31 21:06:34 補充：
個答案應該係..-7.109677419
2007-12-31 21:08:10 補充：
e個先岩..肯定岩!7.109677419 (唔係負數)
2007-12-31 21:06:34 補充：
個答案應該係..-7.109677419
2007-12-31 21:08:10 補充：
e個先岩..肯定岩!7.109677419 (唔係負數)
參考: calculator
收錄日期: 2021-04-13 14:50:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071231000051KK04003