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0.02÷0.8用坚式算

0.02/0.8 =2/80 =1/40 =0.025

13.8÷(1.38×0.02) =13.8÷1.38÷0.02 =10÷0.02 =500 你好,本题已解答,如果满意 请点右下角“采纳答案”。

13.8÷(1.38x0.02) =13.8÷1.38÷0.02 =10÷0.02 =500

①容器内水的深度:h=12cm=0.12m,容器底受到水的压强:p=ρgh=1.0×103kg/m3×10N/kg×0.12m=1200Pa;②由p=FS得,容器底受到水的压力:F=pS=1200Pa×0.02m2=24N;③桌面受到盛水容器的压力:F′=G=2N+12N=14N,桌面受到盛水容器的压强:p′=F′S=14N0.02m...

50x0.8x0.04x1.25x0.02x250 =(50×0.02)×(0.8×1.25)×(0.04×250) =1×1×10 =10

0.02x42.8x50 =0.02x50x42.8 =1x42.8 =42.8

0.02+0.04+0.06……+0.78+0.8 =0.02x(1+2+3+……+40) =0.02x(1+40)x40÷2 =41x0.02x20 =41x0.4 =16.4

0.02+1.3x=0.8 解:1.3x=0.8-0.02 1.3x=0.78 x=0.78÷1.3 x=0.6

0.8+0.2+0.0002+0.02 =(0.8+0.2)+(0.0002+0.02) =1+0.0202 =1.0202.

; ; ;101;0.3;0.045;0.1;0.125;0.1;27500; ;

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