小六代數 急急急急急急 thx

2008-02-15 12:24 am

回答 (4)

2008-02-15 12:41 am
✔ 最佳答案
1) 3.2d+16=48
3.2d=32
d=10

2) 12+0.6c=24
0.6c=12
c=20

3) 4.9k=39.2
k=8

4) 18-3q=8.7
9.3=3q
q=3.1

5) 2/2/3p-8=8
2/2/3p=16
8p=48
p=6

6) 2c/3+9=23
2c/3=14
2c=42
c=21

7)1/2/5f-7/3/5=14/4/5
7f/5-38/5=74/5
7f-38=74
7f=112
f=16

8)4e/5+3/1/2=14/7/10
4e/5+7/2=147/10
(8e+35)/10=147/10
8e=112
e=14

9) 7+5k/4=52
28+5k=208
5k=180
k=36

10) 8/3/8-5e/6=3/3/8
67/8-5e/6=27/8
402/48-40e/48=162/48
240=40e
e=6
2008-02-15 12:50 am
1)3.2d+16=48
3.2d=32
d=10
2)12+0.6c=24
0.6c=12
c=20
3)4.9k-21.3=17.9
4.9k=39.2
k=8
4)18-3q=8.7
-3q=-9.3
q=3.1
5)2又3分2p -8=8
8p/3=16
p=6
56)2c/3 +9=23
2c/3=14
c=21
7)1又5分2f -7又5分3=14又5分4
7f/5-38/5=74/5
7f/5=112/5
f=16
8)4e/5+3又2分1=14又10分7
4e/5+7/2=147/10
4e/5=56/5
e=14
9)7+5k/4=52
5k/4=45
k=36
10)8又8分3 -5e/6=3又8分3
67/8-5e/6=27/8
5e/6=5
e=6
2008-02-15 12:49 am
1) d=(48-16)/3.2 = 10
2) c= (24-12)/0.6 = 20
3) k= (17.9 + 21.3)/ 4.9 = 8
4) q= (18-8.7)/3 = 3.1
5) p= (8+8) / 2(2/3) = 16/(8/3) = 6
6) c= (23-9)*3/2 = 21
7) f= (14(4/5)+7(3/5))/1(2/5) = (74/5 + 38/5) / (7/5) = (112/5)/(7/5) = 16
8) e= (14(7/10) - 3(1/2)) / (4/5) = ((147/10) -(7/2)) *5/4 = ((147/10) - (35/10)) *5/4 = 112/10*5/4 = 14
9) k= (52-7) *4/5 = 36
10) e= (8(3/8) - 3(3/8)) *6/5 = (67/8 - 27/8) *6/5 = 40/8*6/5 = 6
參考: myself
2008-02-15 12:49 am
4) 3.1
10) 2.25


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