x/6=5/12,1/3:1/4=1/6:x,x:0.9=2.7:1.8
2个回答
x/6=5/12,
x=30/12=5/2=2.5
1/3:1/4=1/6:x,
x=1/24 *3=1/8
x:0.9=2.7:1.8
x=0.9*2.7/1.8=1.35
相关问题
2.1X+7.9X=6.9 5X+0.8×2=7.12X+5.8=8.2 6X-3×4=1.2
解方程:数学 (1 ) x/6=5/12 (2.)1/3:1/4=1/6:x (3.)x:0.9=2.7:1.8
4x15/2= 12/5x8= 3/1x4/1= 9/8x10= 6x12/11= 9/2x5/3= 14/6x9/7=
1/1x2x3x4+1/2x3x4x5+1/3x4x5x6+1/4x5x6x7+1/5x6x7x8+1/6x7x8x9+
1/4x-1/2=3/4;7x-5/4=3/8;2x-1/6=5x+1/8;1/2x-7=9x-2/6;1/5x-1/2
1.48x(3/4-1/6)2.3/4x4/9+5/9x3/43.1/5x1/8+7/8x1/54.12x(1/2+1/
解方程(1)1.6x-9=3.8(2)7(x-1.2)=2.1(3)x-0.52x=9.6(4)7-2x=5.
解方程. 6×4-0.5x=12.8 5x-2+1.8=3.6 7(x-1.2)=2.1.
1.8+x=2 x=?x-7.5=2.5 x=?1.2x=4.8 x=?x/0.5=12 x=?x+1.2=9.6 x=