數學問題!!!

2007-06-09 4:54 am
3e+10=19

2d-11=0

1a+2a=60

30.03(小數化分數)

回答 (10)

2007-06-09 4:59 am
✔ 最佳答案
3e+10=19
3e=19-10
3e=9
e=3

2d-11=0
2d=11
d=5.5

1a+2a=60
3a=60
a=20

30.03(小數化分數)
三十又一百分之三(30 3/100)
2007-06-09 7:40 am
3e+10=19
3e = 19 - 10
3e = 9
e = 3

2d-11=0
2d = 0 + 11
2d = 11
d = 5.5

1a+2a=60
3a = 60
a = 20

30.03(小數化分數)
= 3003/100
參考: myself
2007-06-09 5:32 am
1 e=3

2) d=5.5

3) a=20

4)30--3----
100
參考: Me
2007-06-09 5:11 am
你是不懂得怎樣做...還是不願意做呢?
不想做便不要去做,連欠交功課的勇氣也沒有嗎?
明知有責任又不想去負,明知有後果又不想面對,
不懂得的,便要去學!不想學的,便不要靠別人!
2007-06-09 5:06 am
3e + 10 = 19
3e + 10 - 10 = 19 - 10
3e = 9
3e ÷ 3 = 9 ÷ 3
e = 3
-----------------------------------
2d - 11 = 0
2d - 11 + 11 = 0 + 11
2d = 11
2d ÷ 2 = 11 ÷ 2
d = 5.5 或 5 1/2(5又2分之1)
-----------------------------------
1a + 2a = 60
3a = 60
3a ÷ 3 = 60 ÷ 3
a = 20
-----------------------------------
30.03 = 30 3/100(30又100分之3)
參考: Me
2007-06-09 5:06 am
3e+10 = 19
3e = 9
e = 3

2d - 11 = 0
2d = 11
d = 5.5

1a + 2a = 60
3a = 60
a = 20

30.03
= 30又100份之3
2007-06-09 5:05 am
3e+10=19 2d-11=0 1a+2a=60
3e+10-10=19-10 2d-11+11=0+11 3a=60
3e=9 2d=11 3分之3a=3分之60
3分之3e=3分之9 2分之2d=2分之11 a=20
e=3 d=5.5

30.03(小數化分數)
答案=30又100分之3
參考: 我自己
2007-06-09 5:04 am
3e+10=19
3e=19-10
3e=9
e=3

2d-11=0
2d=11
d=5.5

1a+2a=60
3a=60
a=20

30.03(小數化分數)
三十又一百分之三(30 3/100)

^^
2007-06-09 5:02 am
3e+10=19
3e=19-10
3e=9
e=9/3
e=3

2d-11=0
2d=0+11
2d=11
d=11/2
d=5.5


1a+2a=60
3a=60
a=60/3
a=20

30.03(小數化分數)
30又100分之3
2007-06-09 5:01 am
e=9
d=5.5
a=20
30 3/100
(/前是分子,/後是分母)


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