0.7t+2.5=17.9
nx(1-45%)+135=245
1.4x0.5xｗ=56x75
急]]]]]5該*,,,
更新1:
5該曬你地]]*
急-]]5識做數學]],,幫幫手
2007-05-15 5:29 am
簡易方程應用題*例埋成條"識"thz
0.7t+2.5=17.9
nx(1-45%)+135=245
1.4x0.5xｗ=56x75
急]]]]]5該*,,,
0.7t+2.5=17.9
nx(1-45%)+135=245
1.4x0.5xｗ=56x75
急]]]]]5該*,,,
回答 (9)
2007-05-15 5:34 am
✔ 最佳答案
1. 0.7t+2.5=17.9
0.7t=17.9-2.5
t=15.4/0.7
t=22
2.
nx(1-45%)+135=245
nx0.55=245-135
n=110/0.55
n=200
3
1.4x0.5xｗ=56x75
w=4200/0.7
w=6000
參考: 自己計
2007-09-12 10:54 pm
不過有兩條錯左
2007-05-16 1:00 am
1.0.7t+2.5=17.9
0.7t=15.4
t=22
2.nx(1-45%)+135=245
55%n+135=245
11n/20=110
n=200
3.1.4x0.5xｗ=56x75
1.4*0.5w=4200
7w=4200
w=600
2007-05-15 17:02:16 補充：
7w=4200w=600 change it to0.7w=4200w=6000
0.7t=15.4
t=22
2.nx(1-45%)+135=245
55%n+135=245
11n/20=110
n=200
3.1.4x0.5xｗ=56x75
1.4*0.5w=4200
7w=4200
w=600
2007-05-15 17:02:16 補充：
7w=4200w=600 change it to0.7w=4200w=6000
2007-05-15 6:58 pm
t=22
n=200
w=6000
n=200
w=6000
2007-05-15 6:12 am
1. t=22
2. n=200
3. w=6000
2. n=200
3. w=6000
2007-05-15 5:42 am
1) 0.7t+2.5-2.5=17.9-2.5
0.7t=15.4
t=15.4*0.7
t=22
2) nx(1-45%)+135=245
nx55%+135-135=245-135
nx55%=110
n=110*55%
n=200
3) 1.4x0.5xw=56x75
1.4x0.5xw=4200
0.7xw=4200
w=4200*0.7
w=6000
0.7t=15.4
t=15.4*0.7
t=22
2) nx(1-45%)+135=245
nx55%+135-135=245-135
nx55%=110
n=110*55%
n=200
3) 1.4x0.5xw=56x75
1.4x0.5xw=4200
0.7xw=4200
w=4200*0.7
w=6000
參考: Me
2007-05-15 5:36 am
0.7t+2.5=17.9
0.7t = 17.9-2.5
t= 15.4/0.7
t=22
n x (1-45%) + 135 = 245
n x 55%=110
n = 200
1.4x0.5xｗ=56x75
w = 56 x 75 / 1.4 x 0.5
w= 6000
0.7t = 17.9-2.5
t= 15.4/0.7
t=22
n x (1-45%) + 135 = 245
n x 55%=110
n = 200
1.4x0.5xｗ=56x75
w = 56 x 75 / 1.4 x 0.5
w= 6000
參考: me
2007-05-15 5:34 am
0.7t+2.5=17.9
0.7t = 17.9-2.5
t= 15.4/0.7
t=22
n x (1-45%) + 135 = 245
n x 55%=110
n = 200
1.4x0.5xｗ=56x75
w = 56 x 75 / 1.4 x 0.5
w= 6000
0.7t = 17.9-2.5
t= 15.4/0.7
t=22
n x (1-45%) + 135 = 245
n x 55%=110
n = 200
1.4x0.5xｗ=56x75
w = 56 x 75 / 1.4 x 0.5
w= 6000
2007-05-15 5:31 am
0.7t+2.5=17.9
0.7t=15.4
t=22
nx(1-45%)+135=245
55%n=110
n=200
1.4x0.5xｗ=56x75
0.7w=4200
w=6000
0.7t=15.4
t=22
nx(1-45%)+135=245
55%n=110
n=200
1.4x0.5xｗ=56x75
0.7w=4200
w=6000
收錄日期: 2021-05-03 02:10:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070514000051KK04628