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(0.7*2/3-0.11*5/6)/0.625-0.03

(0.7*2/3-0.11*5/6)/0.625-0.03=(1.4/3-0.55/6)/0.625-0.03=(2.25/6)/0.625-0.03=0.6-0.03=0.57

(0.4+2/3)÷(5/6-0.7)*0.5=(6/15+10/15)÷(25/30-21/30)*1/2=16/15÷4/30*1/2=8*1/2=4满意请点击右下角的采纳答案,谢谢

0.7*13÷11-6.6*3÷5-3.4*5÷3+0.7*9÷11解:原式=0.7*22÷11-3/5*(6.6+3.4) =0.7*22/11-3/5*10 =-4.6

7.64

(2) [7/3+(5.4-8/3)*5/3]÷31/9 =(7/3+41/15*5/3)*9/31 =2 (3) 6/5*[(12.25/25/6)/77%]-5/3 =6/5*42/11-5/3 =252/55-5/3 =2又151/165 (4) =6.3*(26/15÷1.12-1/6)=6.3*67/150=2.814 (5) 4.3÷(25/14*28/25)+1/3=149/60 (6) 3.6*(14/15*18/9-3/8)=3.6*6/40=0.54

x除0.83=2.3 x=2.3*0.83 x=1.909 0.7乘3减0.3x=0.06 0.3x=0.21-0.06 0.3x=0.15 x=0.5 2(x-3)=5.8 x-3=5.8/2 x-3=2.9 x=2.9+3 x=5.9

1.2*0.625-0.6÷6/5=0.6*2*0.625-0.6*5/6=0.6*1.25-0.50.75-0.5=0.25

解:0.75*5/6-0.3除以3/5 =0.75*5/6-0.3*5/3 =3/4*5/6-3/10*5/3 =3/6*5/4-3/3*5/10 =1/2*5/4-1*1/2 =1/2*(5/4-1) =1/2*1/4 =1/8 同学,如果觉得我的回答对你有所帮助的话..望采纳..谢谢..如果有什么疑问..请追问..我将会对你采取强有力的回答

0.1*0.1=0.01 0.1*0.2=0.02 0.2*0.2=0.04 0.3*0.6=0.18 0.5*0.6=0.3 0.8*0.5=0.4 0.5*0.2=0.1 0.9*0.8=0.72 0.9*0.7=0.63 0.9*0.6=0.54 0.9*0.5=0.45 0.9*0.4=0.36 0.9*0.3=0.27 0.9*0.2=0.18 0.9*0.1=0.09 0.8*0.8=0.64 0.8*0.7=0.56 0.8*0.6=0.48 0.8*0.4

设原本已读X,未读Y已读和未读的页数比是1比5,则X/Y=1/5如果再读28页,则已读和未读的页数是2:3.则(X+28)/Y=2/3据以上两个式子算出X=12,Y=60所以此书一共X+Y=72

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