www.9647.net > 3/8:x等于0.5:4/3解比例怎么解?

3/8:x等于0.5:4/3解比例怎么解?

内项乘积等于外项乘积0.5x=3/8*4//30.5x=1/2x=1

解比例解:3/8:x=0.5:4x=3/8x4÷0.5x=3/2÷1/2x=3

就等于X÷0.5=4分之3÷4分之1解得X=1.5,比值为1.5:0.5等于3

(1) 4 3 x+8*0.5=16 , 4 3 x+4=16, 4 3 x+4-4=16-4, 4 3 x=12, 4 3 x ÷ 4 3 =12 ÷ 4 3 , x=9;(2)3.6:x=2:12, 2x=3.6*12,2x=43.2, 2x÷2=43.2÷2, x=21.6.

解:3/8:x =0.5:4x=3/8x4÷0.5x=3/2÷1/2x=3

解一:(3/8):x=0.5:4(3/8):x=1:8x=(3/8)*8÷1x=3解二:x=(3/8)*4/0.5x=(12/8)/0.5x=(3/2)/0.5x=3

解 x:3/4=4:0.5 0.5x=3/4*4 x=3÷0.5 x=6祝好好学习天天向上~

4/x=0.5 4=0.5x x=4÷0.5 x=8 满意请及时采纳

0.5:x=3/4:1.2,比例式内相乘积等于外相乘积,0.5*1.2=0.75*X得0.6=3/4*X,X=0.6/0.75=0.8 所以,X=0.8

(1) 0.5 X = 3 0.8 , 3X=0.5*0.8,3X÷3=0.4÷3, X= 2 15 ;(2)X:3.25= 1 5 : 5 4 , 5 4 X=3.25* 1 5 , 5 4 X* 4 5 =0.65* 4 5 , X=0.52.(3) 3 4 :X=3:12, 3X=12* 3 4 ,3X÷3=9÷3, X=3;(4) 0.7 X = 14 5 , 14X=0.7*5, 14X÷14=3.5÷14, X=0.25.

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