I need help solving this problem for T. (3T+7PM)/T=13-P.?
回答 (5)
2009-01-12 2:36 pm
✔ 最佳答案
(3T+7PM)/T=13-P3T+7PM=T(13-P)
3T+7PM=13T-PT
3T-13T+PT=-7PM
-10T+PT=-7PM
T(-10+P)=-7PM
T=-7PM/(-10+P) OR -7MP/(P-10) answer
參考: @(^_^)@
2009-01-12 4:03 pm
(3T+7PM)/T=13-P
3 T^2 + 7 PM T +P - 13 = 0
T = -7 PM/2 +/- sqrt(49 (PM)^2 - 4* 3*(P-13) )/2
T = -7 PM/2 +/- sqrt(49 P^2M^2 - 12 P-156 )/2
3 T^2 + 7 PM T +P - 13 = 0
T = -7 PM/2 +/- sqrt(49 (PM)^2 - 4* 3*(P-13) )/2
T = -7 PM/2 +/- sqrt(49 P^2M^2 - 12 P-156 )/2
2009-01-12 5:07 pm
(3T + 7PM)/T = 13 - P
3T + 7PM = T(13 - P)
3T + 7PM = 13T - PT
3T + PT - 13T = -7PM
T(P + 3 - 13) = -7PM
T = -7PM/(P - 10)
3T + 7PM = T(13 - P)
3T + 7PM = 13T - PT
3T + PT - 13T = -7PM
T(P + 3 - 13) = -7PM
T = -7PM/(P - 10)
2009-01-12 4:09 pm
(3T + 7PM) / T = 13 - P
3T + 7PM = T(13 - P)
3T + 7PM = 13T - PT
PT - 10T + 7PM = 0
T(P - 10) + 7PM = 0
T = -7PM
T = (-7PM) / (P - 10)
3T + 7PM = T(13 - P)
3T + 7PM = 13T - PT
PT - 10T + 7PM = 0
T(P - 10) + 7PM = 0
T = -7PM
T = (-7PM) / (P - 10)
參考: me
收錄日期: 2021-05-01 11:53:32
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090111235806AAP9lEA