1.5x3.14x4/3x2+5x3.14x2/1
=?
2.(12－5.4)÷6÷7/22x100
=?
可唔可以幫我2條數學題?寫答案
2007-05-04 5:25 am
回答 (5)
2007-05-04 5:29 am
✔ 最佳答案
1.5x3.14x4/3x2+5x3.1 4x2/1=4.74*(4/3)*2+15.7*2
=6.28*2+31.4
=12.56+31.4
=43.96
2.(12－5.4)÷6÷7/22x100
=6.6÷6÷7/22x100
=1.1÷7/22x100
=345 4/7
參考: 自己
2007-05-04 5:37 am
1. 15 x 3.14 x 8/3 + 10 x 3.14
= 40 x 3.14 + 10 x 3.14
= 50 x 3.14
= 157
2. (6.6) )÷6÷7/22 x 100
= 1.1 ÷ 7 / 22 x 100
= 110 ÷ 7 / 22
= 1.1 x 22/7 x 100
= 110 x 22 / 7
= 2420 / 7
= 345.71
= 40 x 3.14 + 10 x 3.14
= 50 x 3.14
= 157
2. (6.6) )÷6÷7/22 x 100
= 1.1 ÷ 7 / 22 x 100
= 110 ÷ 7 / 22
= 1.1 x 22/7 x 100
= 110 x 22 / 7
= 2420 / 7
= 345.71
2007-05-04 5:33 am
1.5x3.14x4/3x2+5x3.1 4x2/1
=4.74*(4/3)*2+15.7*2
=6.28*2+31.4
=12.56+31.4
=43.96
2.(12－5.4)÷6÷7/22x100
=6.6÷6÷7/22x100
=1.1÷7/22x100
=345 4/7
努力~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
=4.74*(4/3)*2+15.7*2
=6.28*2+31.4
=12.56+31.4
=43.96
2.(12－5.4)÷6÷7/22x100
=6.6÷6÷7/22x100
=1.1÷7/22x100
=345 4/7
努力~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
參考: My Book
2007-05-04 5:31 am
1.43.96
2.345.57(一個小數位)
數學學過，今天學！
2.345.57(一個小數位)
數學學過，今天學！
2007-05-04 5:29 am
1.43.96
2.345.71(一個小數位)
2007-05-03 21:31:05 補充：
打錯，係兩個小數位
2.345.71(一個小數位)
2007-05-03 21:31:05 補充：
打錯，係兩個小數位
收錄日期: 2021-04-13 16:21:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070503000051KK04153