maths
回答 (3)
2008-10-12 6:54 pm
✔ 最佳答案
The answer is as follows:圖片參考：http://i277.photobucket.com/albums/kk75/uncle_michael/20081012_mat_1.jpg?t=1223780048
2008-10-12 8:45 pm
(2(3b+2))/1.3 - 1(3b-1)/6 = 1.5
(6b + 4) / 1.3 - (3b - 1) /6 = 1.5
兩邊一齊乘7.8
36b + 24 - 3.9b + 1.3 = 11.7
32.1b = 11.7 - 1.3 - 24
32.1b = -13.6
b = -13.6/32.1
b = -0.423676.......
(6b + 4) / 1.3 - (3b - 1) /6 = 1.5
兩邊一齊乘7.8
36b + 24 - 3.9b + 1.3 = 11.7
32.1b = 11.7 - 1.3 - 24
32.1b = -13.6
b = -13.6/32.1
b = -0.423676.......
2008-10-12 5:53 pm
(2(3b+2))/1.3 - 1(3b-1)/6 = 1.5
(6b + 4) / 1.3 - (3b - 1) /6 = 1.5
(6b + 4) * 6 - 1.3 (3b - 1) = 1.5
36b + 24 -3.9b + 1.3 = 1.5
39.9b = -23.8
b = -0.5965
(6b + 4) / 1.3 - (3b - 1) /6 = 1.5
(6b + 4) * 6 - 1.3 (3b - 1) = 1.5
36b + 24 -3.9b + 1.3 = 1.5
39.9b = -23.8
b = -0.5965
參考: CLOUDWAH - 獻醜
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