( ):8=1/4 63:( )=0.3 2/5:( )=6/7

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():8=1/463:()=0.32/5:()=6/7():8=1/463:()=0.32/5:()=6/7():8=1/463:()=0.32/5:()=6/7(2):8=1/463:(210)=0

( ):8=1/4 63:( )=0.3 2/5:( )=6/7
( ):8=1/4 63:( )=0.3 2/5:( )=6/7

( ):8=1/4 63:( )=0.3 2/5:( )=6/7
( 2):8=1/4
63:(210 )=0.3
2/5:( 7/15)=6/7

( 2):8=1/4
63:(210 )=0. 3
2/5:( 7/15)=6/7
( ):8=1/4 63:( )=0. 3 2/5:( )=6/7

( ):8=1/4 63:( )=0.3 2/5:( )=6/7 数学题(加括号)(1)0.3 0.3 0.3 0.3 0.3=0(2)0.3 0.3 0.3 0.3 0.3=1(3)0.3 0.3 0.3 0.3 0.3=2(4)0.3 0.3 0.3 0.3 0.3=4(5)0.2 0.2 0.2 0.2 0.2=3(6)0.2 0.2 0.2 0.2 0.2=5(7)0.2 0.2 0.2 0.2 0.2=6(8)0.2 0.2 0.2 0.2 0.2=7 1:三分之一=11:( ) ( ):6=四分之一 8分之6=2:( ) ( )=1.2 63:( )=0.3 8.5*7.5=(8+1/2) =63 3/4 简便运算 4·75-9·63+(8·25-1·37)= 上面写不下,我写在下面填符号1.(1)1/2( )0.4( )3/10( )0.1=1 (2)1/2( )0.4( )3/10( )1/5( )0.1( )=10 2.(1)0.3( )0.3( )0.3( )0.3( )0.3=0 (2)0.3( )0.3( )0.3( )0.3( )0.3=1 (3)0.3( )0.3( )0.3( )0.3( )0.3=2 (4)0.3( )0.3( )0.3( )0.3( )0.3=4 3.(1)0 问:解方程:(0.3X-1)除以0.02-(4X-8)除以0.5=1 4分之0.3 = 32分之() 2:0.5=1.2:() 8分之7 :( )=2分之1: 急急急!初一年级二元一次和三元一次方程组问题1-0.3(y-2)=5分之x+1四分之y-1=20分之4x+9再-12分之3x-1 -3分之x-y=14分之x-y+3分之x+2y=10.4x+0.3y=2.43分之x-3=5分之y+63(y-2)=x-172(x-1)=5y-8x+y=7y+z=8z+x=9 1/4*(-8/9)=?(-5/6)*(-3/10)=?-34/15*25=?(-0.3)*(-10/7)=? ( )*15分之8=( )*b(B不等于0)=( )*0.3=1 (0.3x—1)除以0.02—(4x—8)除以0.5=1要过程 将0.3x-1/0.02-4x-8/0.5=1去分母后转化成正式方程为() 1/2+3/4+7/8+15/16+31/32+63/64=127/128=? (x+1/3)*0.3=5/8 分数除法比值怎么求?还有应用题?( ):8=4/1 63:()=0.3 5/2:()=7/6 8/6=3:() 5/()=0.8:()=4/3:()=1.2 0.25:5=(0.25×100):()=25:()=():()1.一堆煤,第一天运走了4/1,第二天运走了第一天的4/1,还剩下110t.这堆煤有多少吨?2. 5分之4x()=()x7分之4=8x()=5分之9x()=0.3x()=2.5()=1 1+2+4+8+...+2^63=2^64-1要解也要步骤哦!