1. 2y+2=4y-18, y=??
2.100與100%相差多少??
3.哥哥有100枚郵票,其中36%是日本郵票,他有日本郵票多少枚??
請大家幫一手 thx
數學3題 請答 thx
2009-12-22 6:21 pm
回答 (6)
2009-12-22 6:29 pm
✔ 最佳答案
1. 2y+2=4y-182y = 2+18
y = 20/2 = 10
2. 100%=1
so 相差= 100-1 = 99
3. 100* 36%= 36
參考: me
2009-12-26 6:35 pm
1. 2y + 2 = 4y - 18
2+ 18 = 4y - 2y
20 = 2y
y = 10
2. 100 - 100%
= 100 - 100/100
= 100 - 1
= 99
3. 100 x 36%
= 100 x 36 / 100
= 36
okay!
2+ 18 = 4y - 2y
20 = 2y
y = 10
2. 100 - 100%
= 100 - 100/100
= 100 - 1
= 99
3. 100 x 36%
= 100 x 36 / 100
= 36
okay!
參考: 我
2009-12-23 2:18 am
1) 18+2=4y-2y
20=2y
y=10
2) 100=100
100%=1
so 100-1=99
3) 100*(36/100)
100*0.36
=36
20=2y
y=10
2) 100=100
100%=1
so 100-1=99
3) 100*(36/100)
100*0.36
=36
2009-12-22 9:05 pm
1.2y+2=4y-18
2+18=4y-2y
20=2y
y= 10
2. 100%=1
所以相差=
100-1 = 99
3. 100* 36%= 36
2+18=4y-2y
20=2y
y= 10
2. 100%=1
所以相差=
100-1 = 99
3. 100* 36%= 36
參考: myself
2009-12-22 6:30 pm
1. 2y + 2 = 4y - 18
2+ 18 = 4y - 2y
20 = 2y
y = 10
2. 100 - 100%
= 100 - 100/100
= 100 - 1
= 99
3. 100 x 36%
= 100 x 36 / 100
= 36
希望幫到你 :)
2+ 18 = 4y - 2y
20 = 2y
y = 10
2. 100 - 100%
= 100 - 100/100
= 100 - 1
= 99
3. 100 x 36%
= 100 x 36 / 100
= 36
希望幫到你 :)
參考: me
2009-12-22 6:30 pm
1. 2y+2=4y-18
2y=20
y=10
2.100與100%相差 = 100
3.哥哥有100枚郵票,其中36%是日本郵票,他有日本郵票 = 36
2y=20
y=10
2.100與100%相差 = 100
3.哥哥有100枚郵票,其中36%是日本郵票,他有日本郵票 = 36
收錄日期: 2021-04-13 17:00:03
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