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16=-8(5p+8)
5(7+3Q)+12=2
7Q=15+11Q-3
2p+1=0.4p+9
數學問題 F.1
2007-10-06 2:11 am
回答 (8)
2007-10-06 2:17 am
✔ 最佳答案
1)16= -40p - 64-40p=80
p=-2
2)35+15q+12=2
47+15q=2
15q=-45
q=3
3) -4q=12
q=-3
4)1.6p=8
p=5
2007-10-07 00:31:42 補充：
2)35 15q 12=247 15q=215q=-45q=-3 先真
參考: myself
2007-10-06 3:09 am
16=-8(5p+8)
16=(-40p)+(-64)
16+64=(-40p)+(-64)+(+64)
80=-40p
80/-40=-40p/-40
-2=p
p=-2
5(7+3Q)+12=2
5(7+3Q)+12-12=2-12
35+3Q=-10
35+3Q-35=-10-35
3Q=-45
3Q/3=-45/3
Q=15
16=(-40p)+(-64)
16+64=(-40p)+(-64)+(+64)
80=-40p
80/-40=-40p/-40
-2=p
p=-2
5(7+3Q)+12=2
5(7+3Q)+12-12=2-12
35+3Q=-10
35+3Q-35=-10-35
3Q=-45
3Q/3=-45/3
Q=15
參考: sorry,識2條咋我再諗到再打
2007-10-06 2:50 am
1)16=-8(5p+8)
-2 = 5P+8
-10 = 5P
P = -2
2) 5(7+3Q)+12=2
5(7+3Q) = -10
7+3Q = -2
3Q = -9
Q = -3
3) 7Q=15+11Q-3
-4Q= 12
Q = -3
4)2p+1=0.4p+9
1.6P= 8
P = 5
-2 = 5P+8
-10 = 5P
P = -2
2) 5(7+3Q)+12=2
5(7+3Q) = -10
7+3Q = -2
3Q = -9
Q = -3
3) 7Q=15+11Q-3
-4Q= 12
Q = -3
4)2p+1=0.4p+9
1.6P= 8
P = 5
參考: ME
2007-10-06 2:42 am
1)16=-8(5p+8)
16+8=-8(5p+8)+8
16+8-8=5p+8-8
16+8-8/5=5p/5
16=p
p=16
2)5(7+3Q)+12=2
5(7+3Q)+12-12=2-12
35+15Q=-10
35+15Q-35=-10-35
15Q/15=-10-35/15
Q=-10-35/15
3)7Q=15+11Q-3
7Q-11Q=15+11Q-3-11Q
Q(7-11)=15-3
Q(7-11)/(7-11)=15-3/7-11
Q=15-3/7-11
4)2p+1=0.4p+9
2p+1-1=0.4p+9-1
2p-0.4p=0.4p+9-1-0.4p
p(2-0.4)=9-1
p(2-0.4)/(2-0.4)=9-1/(2-0.4)
p=9-1/(2-0.4)
16+8=-8(5p+8)+8
16+8-8=5p+8-8
16+8-8/5=5p/5
16=p
p=16
2)5(7+3Q)+12=2
5(7+3Q)+12-12=2-12
35+15Q=-10
35+15Q-35=-10-35
15Q/15=-10-35/15
Q=-10-35/15
3)7Q=15+11Q-3
7Q-11Q=15+11Q-3-11Q
Q(7-11)=15-3
Q(7-11)/(7-11)=15-3/7-11
Q=15-3/7-11
4)2p+1=0.4p+9
2p+1-1=0.4p+9-1
2p-0.4p=0.4p+9-1-0.4p
p(2-0.4)=9-1
p(2-0.4)/(2-0.4)=9-1/(2-0.4)
p=9-1/(2-0.4)
參考: 平時做數...
2007-10-06 2:22 am
1. 16=8(5p+8)
16=40p+64
40p=40
p=10
2. 5(7+3Q)+12=2
35+15Q+12=2
15Q=-45
Q=-5
3. 7Q=15+11Q-3
-4Q=12
Q=-3
4.2p+1=0.4p+9
1.6p=8
p=5
16=40p+64
40p=40
p=10
2. 5(7+3Q)+12=2
35+15Q+12=2
15Q=-45
Q=-5
3. 7Q=15+11Q-3
-4Q=12
Q=-3
4.2p+1=0.4p+9
1.6p=8
p=5
2007-10-06 2:22 am
16=-8(5p+8)
16=-40p-64
16+64=-40p
80=-40p
-2=p
0=-2
5(7+3Q)+12=2
35+15Q+12=2
15Q=2-35-12
15Q=-45
Q=-3
7Q=15+11Q-3
7Q=15-3+11Q
7Q-11Q=12
-4Q=12
Q=-3
2p+1=0.4p+9
2p-0.4p=9-1
1.6p=8
p=5
16=-40p-64
16+64=-40p
80=-40p
-2=p
0=-2
5(7+3Q)+12=2
35+15Q+12=2
15Q=2-35-12
15Q=-45
Q=-3
7Q=15+11Q-3
7Q=15-3+11Q
7Q-11Q=12
-4Q=12
Q=-3
2p+1=0.4p+9
2p-0.4p=9-1
1.6p=8
p=5
參考: 自己
2007-10-06 2:20 am
1. 16=8(5p+8)
16=40p+64
40p=40
p=10
2. 5(7+3Q)+12=2
35+15Q+12=2
15Q=-45
Q=-5
3. 7Q=15+11Q-3
-4Q=12
Q=-3
4.2p+1=0.4p+9
1.6p=8
p=5
16=40p+64
40p=40
p=10
2. 5(7+3Q)+12=2
35+15Q+12=2
15Q=-45
Q=-5
3. 7Q=15+11Q-3
-4Q=12
Q=-3
4.2p+1=0.4p+9
1.6p=8
p=5
2007-10-06 2:20 am
1. 16 = -8(5p+8)
-2 = 5p+8
5p = -10
p = -2
2. 5(7+3Q)+12 = 2
5(7+3Q) = -10
7+3Q = -2
3Q = -9
Q = -3
3. 7Q = 15+11Q-3
-4Q = 12
Q = -3
4. 2p+1 = 0.4p+9
1.6p = 8
p = 5
希望幫到你la~~
-2 = 5p+8
5p = -10
p = -2
2. 5(7+3Q)+12 = 2
5(7+3Q) = -10
7+3Q = -2
3Q = -9
Q = -3
3. 7Q = 15+11Q-3
-4Q = 12
Q = -3
4. 2p+1 = 0.4p+9
1.6p = 8
p = 5
希望幫到你la~~
參考: me
收錄日期: 2021-04-13 13:46:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071005000051KK02331