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標題:
p.6簡易方程
發問:
列式 1) 4a=20 2) 4分a = 16 3) bx2分1=3 4) cx6分1=7 5)mx3分2=42 6)4ex7分3=24 7)5分3t+8=17 8)3分1u-7=6 9)yx60%=36 10)x+3.2=4.7 11)d+1.6=4.5 12)2.3h=5.52 13)2.5x+2.5=10 3)
最佳解答:
其他解答:
1) 4a=20 a = 20/4 = 5 2) 4分a = 16 a/4 = 16 , a = 4 x 16 = 64 3) bx2分1=3 b/2 = 3 , b = 3 x 2 =6 4) cx6分1=7 c/6 = 7, c = 6 x 7 = 42 5)mx3分2=42 2m/ 3 = 42 , m = (3 x 42) /2 = 63 6)4ex7分3=24 12e/ 7 = 24, e = (24 x 7)/12 = 14 7)5分3t+8=17 3t/5 = 17-8, 3t/5 = 9, t = (9 x 5)/ 3 = 15 8)3分1u-7=6 u/3 = 6+7 , u = 13 x 3 = 39 9)yx60%=36 0.6y = 36 , y = 36/0.6 = 60 10)x+3.2=4.7 x = 4.7 -3.2 = 1.5 11)d+1.6=4.5 d = 4.5 -1.6 = 2.9 12)2.3h=5.52 h = 5.52/ 2.3 = 2.4 13)2.5x+2.5=10 x = (10-2.5) / 2.5 = 3
p.6簡易方程
發問:
列式 1) 4a=20 2) 4分a = 16 3) bx2分1=3 4) cx6分1=7 5)mx3分2=42 6)4ex7分3=24 7)5分3t+8=17 8)3分1u-7=6 9)yx60%=36 10)x+3.2=4.7 11)d+1.6=4.5 12)2.3h=5.52 13)2.5x+2.5=10 3)
最佳解答:
此文章來自奇摩知識+如有不便請留言告知
1. 4a=20 a=20/4 a=5 2. 4/a = 16 a=4/16 a=1/4 a=0.25 3. bx2/1=3 2b/1=3 2b=3x1 2b=3 4. cx6/1=7 6c/1=7 6c=1x7 6c=7 c=7/6 5. mx3/2=42 3m/2=42 3m=42x2 3m=84 m=84/3 m=28 6. 4ex7/3=24 28e/3=24 28e=24x3 28e=72 7. 5/3t+8=17 5=(3t+8)x17 5=3tx17+8x17 5=51t+136 5-136=51t -131=51t 51t= -131 t= -131/51 8. 3/1u-7=6 3=(1u-7)x6 3=6u-42 3+42=6u 45=6u u=45/6 u=15/2 9. yx60%=36 y=36x100/60 y=3600/60 y=60 10. x+3.2=4.7 x=4.7-3.2 x=1.5 11. d+1.6=4.5 d=4.5-1.6 d=2.9 12. 2.3h=5.52 h=5.52/2.3 h=552/230 h=2.4 13. 2.5x+2.5=10 2.5x=10-2.5 2.5x=7.5 x=7.5/2.5 x=75/25 x=3其他解答:
1) 4a=20 a = 20/4 = 5 2) 4分a = 16 a/4 = 16 , a = 4 x 16 = 64 3) bx2分1=3 b/2 = 3 , b = 3 x 2 =6 4) cx6分1=7 c/6 = 7, c = 6 x 7 = 42 5)mx3分2=42 2m/ 3 = 42 , m = (3 x 42) /2 = 63 6)4ex7分3=24 12e/ 7 = 24, e = (24 x 7)/12 = 14 7)5分3t+8=17 3t/5 = 17-8, 3t/5 = 9, t = (9 x 5)/ 3 = 15 8)3分1u-7=6 u/3 = 6+7 , u = 13 x 3 = 39 9)yx60%=36 0.6y = 36 , y = 36/0.6 = 60 10)x+3.2=4.7 x = 4.7 -3.2 = 1.5 11)d+1.6=4.5 d = 4.5 -1.6 = 2.9 12)2.3h=5.52 h = 5.52/ 2.3 = 2.4 13)2.5x+2.5=10 x = (10-2.5) / 2.5 = 3
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