( )/2.4=3.6/1.2 7.5/( )=2.5/12 2.7/( )=3/9 1.6/ ( )=0.5/3/8
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( )/2.4=3.6/1.2 7.5/( )=2.5/12 2.7/( )=3/9 1.6/ ( )=0.5/3/8 5/0.3=25 ( ) 5.4/6.3=18/ ( ) 看补充
4/3=( )比( )=( )百分号=( ) 95百分号=( )/( )=( )比(
4/3=( )比( )=( )百分号=( ) 95百分号=( )/( )=( )比(
( 7.2)/2.4=3.6/1.2
7.5/(36 )=2.5/12
2.7/(8.1 )=3/9
1.6/ ( 1.2)=0.5/3/8
5/0.3=25 ( 1.5)
5.4/6.3=18/ (21 )
4分之3=(3 )比(4 )=( 75% )=(0.75 ) 95%=( 95 )/(100 )=( 19 )比( 20 )
7.5/(36 )=2.5/12
2.7/(8.1 )=3/9
1.6/ ( 1.2)=0.5/3/8
5/0.3=25 ( 1.5)
5.4/6.3=18/ (21 )
4分之3=(3 )比(4 )=( 75% )=(0.75 ) 95%=( 95 )/(100 )=( 19 )比( 20 )
( )/2.4=3.6/1.2 7.5/( )=2.5/12 2.7/( )=3/9 1.6/ ( )=0.5/3/8
1/2比1/3=1/4比x,5/12=2.5/x,9比2.5=3.6比x,24/x=1.8/2.4,x比2/3=1/8比
7.5=3x-1.2
(0.5x+7)*1.6=1.2*3x怎么解
解方程 3(x-12)=3.3 2.5-x=7.5/5 5/x+1.5=4 3x-7*1.2=10.2 (24+0.8x
解比例.4.8:3.6=2.4:x 36:x=28:12分之7 14分之3:8分之5=x:9分之7 x:12=3:9 2
2.4x-1.6=3.2、7x-4x=2.4、9.7x-2.7x=35、5x+3x=264、8x-6x=0.15、0.8
x-o.8x=6 12x-8x=4.8 3x-8=16 7.5x-2x x-0.7x=3.6 求答案
求x的值 2.5:x=7.5:0.5 x= 2.4x+28.8=48 x= x-3分之2x=1.8 x= (1+5分之3
解方程题,1.0.2(3-X)=0.4(6-X) 第二题是3(X+1.2)-4(X+0.5)第三题是7.5除以X=2.5
1.5:2.4=X:4 X:1.2=2.5:3.6求解比例.
1.6×3=0.4×12