精品资料欢迎下载解比例练习题解比例 : x:10=41:31 0.4:x=1.2:2 4. 212=x321:51=41:x 0.8:4=x:8 43:x=3:12 92=x8x36=354x: 32=6: 2524x5.4=2 .26 45:x=18:26 x:24= 43:31 8:x=54:4385:61=x: 121精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 1 页，共 11 页精品资料欢迎下载0642.4x6x15130.6121.5x3412x451112452536xx1140.7121050x401.3x5.220 x3. 661813120169x 4.60.28x38x64解方程X27 X=43 2X + 25 = 35 70%X + 20%X = 3.6 X53=2041 25% + 10X = 54 X - 15%X = 68 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 2 页，共 11 页精品资料欢迎下载X83X121 5X32157532X4112 6X5 =13.4 834143X 3X=83X72=167 X87X=43 4X632=2 125X=31053 X = 722598 X = 615116X356=45262513 4x3 9 = 29 21x + 61x = 4 103X2132=4 2041xx8)6.2(2 x精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 3 页，共 11 页精品资料欢迎下载6X5 =13.4 25 X-13 X=310 4638 5X=1915218X=154 X54=281532X41=12 53X=722598X=615116X356=45262513 X-0.25=414X=30% 4+0.7X=102 32X+21X=42 X+41X=105 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 4 页，共 11 页精品资料欢迎下载 X-83X=400 X-0.125X=8 X36 = 43X+37 X=18 X( 16 + 38 )=1312 x0.375x=65x32+21=483 X73X12 5 X2.4 58 0.365- 34 x = 3523 (x- 4.5) = 7 12 x- 25%x = 10 x- 0.8x = 16+6 20 x 8.5= 1.5 x- 45 x -4= 21 X25%X=90 X37 X= 89 X27 X=432X + 25 = 35 70%X + 20%X = 3.6 X53=2041精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 5 页，共 11 页精品资料欢迎下载25% + 10X = 54 X - 15%X = 68 X83X121 5X32157532X4112 6X5 =13.4 834143X 3X=83 X72=167X87X=43 4X632=2 125X=31053 X = 722598 X = 615116 X356=45262513精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 6 页，共 11 页精品资料欢迎下载4x3 9 = 29 21x + 61x = 4 103X2132=4 2041xx8)6 .2(2 x 6X5 =13.4 25 X-13 X=310 4638 5X=1915218X=154 X54=281532X41=12 53X=722598X=615116 X356=45262513X-0.25=414X=30% 4+0.7X=102 32X+21X=42 X+41X=105 X-83X=400 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 7 页，共 11 页精品资料欢迎下载X-0.125X=8 X36 = 43 X+37 X=18 X( 16 + 38 )=1312 x0.375x=65 x32+21=483X73X12 5 X2.4 58 0.365- 34 x = 3523 (x- 4.5) = 7 12 x- 25%x = 10 X25%X=90 x- 0.8x = 16+6 20 x 8.5= 1.5 x- 45 x -4= 21 X37 X= 89X27 X=43 2X + 25 = 35精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 8 页，共 11 页精品资料欢迎下载70%X + 20%X = 3.6X53=2041 25% + 10X = 54X - 15%X = 68X83X121 5X321575834143X 3X=83X72=167 X87X=43 4X632=2 125X=31053 X = 722598 X = 615116X356=45262513 4x3 9 = 29 21x + 61x = 4 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 9 页，共 11 页精品资料欢迎下载103X2132=4 2041xx8)6.2(2 x6X5 =13.4 25 X-13 X=310 4638 5X=1915218X=154 X54=281532X41=12 53X=722598X=615116X356=45262513 X-0.25=414X=30% 4+0.7X=102 32X+21X=42 X+41X=105 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 10 页，共 11 页精品资料欢迎下载 X-83X=400 X-0.125X=8 X36 = 43X+37 X=18 X( 16 + 38 )=1312 x0.375x=65x32+21=483 X73X12 5 X2.458 0.365- 34 x = 3523 (x- 4.5) = 7 12 x- 25%x = 10 x- 0.8x = 16+6 20 x 8.5= 1.5 x- 45 x -4= 21 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 11 页，共 11 页