解比例(方程)专项练习180题-精选.
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解比例专项练习183题(有答案)
(1)x:8=:,(2):=:X,(3)16:x=0.75:,(4)(x﹣0.4):8=,(5)1.6:x=0.125:0.5 (6):=:x,(7)x:1.2=3:4,(8)12:3=:x,
(9)=5:3,
(10)0.8:4=x:8,
(11)16:x=2.4:3,
(12):x=:,
(13)=,
(14)x:7.5=0.16:1,
(15)(4.5﹣x):0.6=(10+x):2,
(16),
(17),
(18)=,
(19)X:18.5=5:4,
(20)8:X=:,
(21)0.5:0.25=0.2:X,
(22)x:12=:2.8,(23):=x :,(24)=,
(25)9:5﹦4.5:x,(26):x ﹦:,(27)﹦,(28):﹦x:8,(29)x :﹦51:17,(30)﹦:,
(31)6:x=4:7,
(32)30:x=54:36,
(33)2.5:15=:x,
(34)=,
(35):=:x,
(36)x:17=,
(37)=,
(38)1.3:x=5.2:20,
(39)x:36=6:18,
(40),
(41):=x:9
(42):x=:
(43)x:42=:10,
(44)=,
(45):x=:6,
(46)=,(47):x=:,(48)20:x=:(49)x:0.4=0.6:0.3,(50)=,(51)8:9=4:x,(52)3:4=x:1.2,(53)=,(54)=,
(55)x :=:,
(56),
(57)=x :.
(58)6:x=4.5:1,
(59)3:x=:1,
(60)0.72:x=9.6:4.8,
(61)12:=x:0.5,
(62):=,
(63)x :=28:,
(64)x:6.4=12:8,
(65):x=:3,
(66)=,
(67),
(68),
(69)=8:x,
(71)4:1=x :,(72):3=x:0.7,(73)x:1.8=5:14,(74)=,
(74)75:x=2.5:12,(75)0.75:=x :,(76)25:7=x:35 (78)23:x=12:14 (79)x:15=13:56 (80)34:x=54:2 (81)x:0.75=81.25 (82)x :=:4,(83)=,(84):=X:9,
(86)=,(87)3.6:x=1.8:3,(88),(89),(90)8:13=20:x,(91)x:2.5=4:0.5,(92),
(94)x :36=3:54,
(95)0.6:0.8=x :20,
(96):x=:12, (97)=,
(98)0.7:18=21:x
(98)= (99)1.5:2.5=12:x
(101)
=
(102)
=
(103):=:x , (104)(6+x ):4=9:5
(105)=, (106)=, (107)4:16=9:x ,
(109)
=,
(110)0.5:x=:
(111)=
(112)=:
(113):=:x
(115)X :=1.25:3,
(116),
(117)8:x=1.8:3.6,(118):=6:x,(119)6:=x :,(120),(121)2:5=X:6 (122):=X :(123)=
(124):=:X (125):X=3:12
(126)0.4:0.8=
(127):=x :,
(128):x=3:12,
(129)=,
(130)2.7:x=54:18,
(131):=x :,
(132)=,
(133)3:x=9:15,
(134)=,
(135):=:x,
(136)=x :,
(137)0.1:0.5=,
(138)1.25:0.25=x:1.6,
(139)=0.8:,
(140)0.75:X=0.51:3.4,
(141)12:20=:X,(142)=,(143):=x:9,(144)4:x=×5,(145):=:x,(146)0.5:x=:0.25,(147)=,(148):=:x,(149)15:x=0.2:44,
(150):=20:x,
(151)=,
(152)40:x=2.5:15,
(153)3:8=x:2.4,
(154):=x:15,
(155):x=6:,
(156)8.5:x=4:12
(157)0.1:0.5=
(158):x=:
(159)1.2:3=:x.
(160)=,
(161)8:30=24:x,
(162):=x :,
(163)x :=16:.
(164)15:6=10:x,
(165):X=:2,(166)=0.8:1.2,(167)=,(168)x:3.25=:,(169):=x :,(170)45:54=60:x,(171)3:2.5=x:40,(172):=x :,
(173)=,
(174)6.5:x=3.25:4,
(175):=x:9,
(176)8:30=24:X,
(177):=X :,
(178)=,
(179)6.5:x=3.25:4,
(180)75:x=25:15,
(181)24%x+8%x=16,
(182)1.8:x=:,
(183)=,