1. 450kg x 33又3分1%是多小??
2. 50kg 增加10% 的結果??
3. 由100減至70 的百分數??
4. 200s減少20%的結果??
問數學.....幫幫我牙!!(急....)
2006-11-05 4:05 am
回答 (8)
2006-11-05 4:10 am
✔ 最佳答案
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2006-11-05 7:17 pm
1.450*33又3分1%
=450*1/3
=150kg
2=50kg 增加10% 的結果
=50*(1+10%)
=50*1.1
=55kg
3. 由100減至70 的百分數
=(100-70)/100*100%
=30/100*100%
=30%
4.200s減少20%的結果
=200*(1-20%)
=200*0.8
=160s
=450*1/3
=150kg
2=50kg 增加10% 的結果
=50*(1+10%)
=50*1.1
=55kg
3. 由100減至70 的百分數
=(100-70)/100*100%
=30/100*100%
=30%
4.200s減少20%的結果
=200*(1-20%)
=200*0.8
=160s
參考: my brain
2006-11-05 5:53 am
1.450kg x 33/1/3%
=450kg x 100/3 x 1/100
=450kg x 1/3
=150kg
2.50kg 增加10%
=50kg x (1+10%)
=50kg+50kg x 1/10
=(50+5)kg=55kg
3.100減至70 的百分數
100 x A%=70
A%=70/100
A=70
4. 200s減少20%
=200s x (1-20%)
=200s-200s x 1/5
=(200-40)s=160s
=450kg x 100/3 x 1/100
=450kg x 1/3
=150kg
2.50kg 增加10%
=50kg x (1+10%)
=50kg+50kg x 1/10
=(50+5)kg=55kg
3.100減至70 的百分數
100 x A%=70
A%=70/100
A=70
4. 200s減少20%
=200s x (1-20%)
=200s-200s x 1/5
=(200-40)s=160s
2006-11-05 4:58 am
1.450kg*33又3分1%
=150kg
2.50kg*(1+10%)
=55kg
3.(100-70)*100%
=30%
4.200s*(1-20%)
=160s
=150kg
2.50kg*(1+10%)
=55kg
3.(100-70)*100%
=30%
4.200s*(1-20%)
=160s
2006-11-05 4:40 am
150
55
70%
160
55
70%
160
2006-11-05 4:25 am
1. 450kg x 33又3分1%是多小?
450kg x 33又3分1%
=450x1/3
=150
so=150kg
2. 50kg 增加10% 的結果??
50kg+50x10%kg
=50+5
=55
so=55kg
3. 由100減至70 的百分數??
(100-70)/100x100
=30/100%
=30%
so=30%
4. 200s減少20%的結果??
200s-200sx20%
=200s-40s
=160s
so=160s
450kg x 33又3分1%
=450x1/3
=150
so=150kg
2. 50kg 增加10% 的結果??
50kg+50x10%kg
=50+5
=55
so=55kg
3. 由100減至70 的百分數??
(100-70)/100x100
=30/100%
=30%
so=30%
4. 200s減少20%的結果??
200s-200sx20%
=200s-40s
=160s
so=160s
參考: me
2006-11-05 4:17 am
1. 450kg x 33又3分1%是多小??
ANS:15000kg
2. 50kg 增加10% 的結果??
ANS:55kg
3. 由100減至70 的百分數??
ANS:30%
4. 200s減少20%的結果??
ANS:160s
ANS:15000kg
2. 50kg 增加10% 的結果??
ANS:55kg
3. 由100減至70 的百分數??
ANS:30%
4. 200s減少20%的結果??
ANS:160s
2006-11-05 4:13 am
1. 150kg
2. 50(1+10%)=55kg
3.(100-70)/100*100%=30%
4. 200(1-20%)=160s
2. 50(1+10%)=55kg
3.(100-70)/100*100%=30%
4. 200(1-20%)=160s
收錄日期: 2021-04-12 20:00:54
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