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1、3 0.9 (0.15 0.35) 7.2533.756 (2)() 20() ()45(10.05)1.90.1 3 + 3 0.9 (0.15 0.35) 7.2533.756 (2)() 20() ()45(10.05)1.90.1 3 + 23 1() 3.62.87.47.2+ 5.21173 44 ()() 13.86.27+5 ()24)(+) 1() 3.62.87.47.2+ 5.21173 44 ()() 13.86.27+5 ()24)(+) (+)52 10513-189018 () 521.05(3.80.8)6.3 () ( )3.8 3.8 (+)52 10513
2、-189018 () 521.05(3.80.8)6.3 () ( )3.8 3.8 0.6X + 14 = 32.6 3.2x-43=521=1=30.365=1=9=4.2 0.3=3 0.8=7.5 4()=0.84 (54)= 0.6X + 14 = 32.6 3.2x-43=521=1=30.365=1=9=4.2 0.3=3 0.8=7.5 4()=0.84 (54)= 33=22=17=2(3.52)=4.2 0.6X + 14 = 32.6 3.2x-43=521= 1=30.365=4.2 33=22=17=2(3.52)=4.2 0.6X + 14 = 32.6 3.2x-43=521= 1=30.365=4.2 2(X-2.6)=8 ( X - 4.5) = 7 0.365- X = 0.8=7.5 4()=0.84(54)= (3.52)=4.2 X=20 50% X + X = 3.6 25% X + 15%X = X - 15%X = 68 2(X-2.6)=8 ( X - 4.5) = 7 0.365- X = 0.8=7.5 4()=0.84(54)= (3.52)=4.2 X=20 50% X + X = 3.6 25% X + 15%X = X - 15%X = 683