解比例 x:4=25:30 2x:3=6:10 4x:15=(1/4):4 5.2:x=(1/2):10.4 10.8:x=9:5.4 2.5:x=4.5:7.5 19.6x=3:9.8解比例x:4=25:30 2x:3=6:10 4x:15=(1/4):4 5.2:x=(1/2):10.4 10.8:x=9:5.4 2.5:x=4.5:7.5 19.6x=3:9.8
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![解比例 x:4=25:30 2x:3=6:10 4x:15=(1/4):4 5.2:x=(1/2):10.4 10.8:x=9:5.4 2.5:x=4.5:7.5 19.6x=3:9.8解比例x:4=25:30 2x:3=6:10 4x:15=(1/4):4 5.2:x=(1/2):10.4 10.8:x=9:5.4 2.5:x=4.5:7.5 19.6x=3:9.8](/uploads/image/z/961224-24-4.jpg?t=%E8%A7%A3%E6%AF%94%E4%BE%8B+x%EF%BC%9A4%3D25%3A30+2x%3A3%3D6%3A10+4x%3A15%3D%281%2F4%29%3A4+5.2%3Ax%3D%281%2F2%29%3A10.4+10.8%3Ax%3D9%3A5.4+2.5%3Ax%3D4.5%EF%BC%9A7.5+19.6x%3D3%3A9.8%E8%A7%A3%E6%AF%94%E4%BE%8Bx%EF%BC%9A4%3D25%3A30+2x%3A3%3D6%3A10+4x%3A15%3D%281%2F4%29%3A4+5.2%3Ax%3D%281%2F2%29%3A10.4+10.8%3Ax%3D9%3A5.4+2.5%3Ax%3D4.5%EF%BC%9A7.5+19.6x%3D3%3A9.8)
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解比例 x:4=25:30 2x:3=6:10 4x:15=(1/4):4 5.2:x=(1/2):10.4 10.8:x=9:5.4 2.5:x=4.5:7.5 19.6x=3:9.8解比例x:4=25:30 2x:3=6:10 4x:15=(1/4):4 5.2:x=(1/2):10.4 10.8:x=9:5.4 2.5:x=4.5:7.5 19.6x=3:9.8
解比例 x:4=25:30 2x:3=6:10 4x:15=(1/4):4 5.2:x=(1/2):10.4 10.8:x=9:5.4 2.5:x=4.5:7.5 19.6x=3:9.8
解比例
x:4=25:30
2x:3=6:10
4x:15=(1/4):4
5.2:x=(1/2):10.4
10.8:x=9:5.4
2.5:x=4.5:7.5
19.6x=3:9.8
解比例 x:4=25:30 2x:3=6:10 4x:15=(1/4):4 5.2:x=(1/2):10.4 10.8:x=9:5.4 2.5:x=4.5:7.5 19.6x=3:9.8解比例x:4=25:30 2x:3=6:10 4x:15=(1/4):4 5.2:x=(1/2):10.4 10.8:x=9:5.4 2.5:x=4.5:7.5 19.6x=3:9.8
x:4=25:30 2x:3=6:10 4x:15=(1/4):4 5.2:x=(1/2):10.4
30X=4×25 解 :2X ×10=3 ×6 解 :4X ×4=15 ×1/4 X/2=5.2×10.4
X=100÷30 2X=18÷10 16X=15/4 X=54.08÷1/2
X=10/3 X=1.8÷2 X=15/4÷16 X=108.16
X=0.9 X=15/64
10.8:x=9:5.4 2.5:x=4.5:7.5 19.6x=3:9.8
9X=10.8×5.4 4.5X=2.5×7.5 这不是比例
9X=58.32 4.5X=18.75
X=58.32÷9 X=25/6
X=6.48