X+Y=10009.93%x+25%y=100
3个回答
25X+25Y=25000
9.93X+25Y=10000
上等式减下等式得
15.07X=15000
x=995.355
y=1000-995.355=4.645
相关问题
(1560-X)/X*100%=25% (1350-Y)/Y*100%=-10%求解
因式分解 4×175²-100×25 x²(x-y)+(y²-x²)
Y=-10.96+0.93X1-2.09X2 y是个人消费支出,X1是可支配收入,MPC=0.93 n=25 t(X1)
因式分解:(x^2+25y^2)^2-100x^2y^2
因式分解:25x^2-100y^2=——
3x-5y=6x+4乘y=-15 x+y=100y=2x+82x+3y=123x+4y=17.y=100-x 100-x
{X+Y=25 { 4200X+3100Y=100000 {X+Y=25 {3700X+3100Y=100000
(x+y)的平方-10x-10y+25=(x+y)-10( )+25
因式分解:①(x²+y²)²-4x²y² ② 25x²y
(x+5y)(x-5y)等于A.25y2-x2B.x2+25y2C.x2-25y2D.x2+10xy+25y2