8.66*(1-x^10)/(1-x)=382.82
    10.8*(1-x^10)/(1-x)=451.38
    49.93*(1-x^10)/(1-x)=500.54
    X-X(1-20%)*20%=10080
    29.77*(1-x^10)/(1-x)=556.02
    31x^2-36x-196
    (3500Q*0.13-(5+150Q)-140)*0.12
    3500Q-(120+2000Q+231.75)=0
    3500Q-(120+2000Q+231.75)-(3500Q*0.13-(5+150Q)-140)*0.12=0
    (3500Q*0.13-(5+150Q)-140)*0.12=0
    3500Q-(120+2000Q+231.75)-(3500Q*0.13-(5+150Q)-140)*0.12
    x^2-13.9x+40.2=0
    x^2-9.8x+11.1=0
    7x-5（2.2+x)=6.5
    2(1+x)^6+2(1+x)^5+2(1+x)^4=7.2
    2(1+x)^6+2(1+x)^5+2(1+x)^4=6
    2x+1.3=2.8-3x
    450Q-(70+240Q+171+69.02)-（450Q*0.13-15Q-30.4）*0.12=0
    450Q-(70+240Q+171+69.02)-（450Q*0.13-15Q-30.4）=0
    Q×450-（310.02+Q×240）-（Q×450×13％-Q×15-30.4）×12％=0

Home page << page63 page64 page65 page66 page67 ... ... page69 page70 page71 page72 page73 >> Last page 31237 pages in total