数学问题,急,化简和填空,大哥大姐帮帮忙化简6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18) 填空当a除以0.1等于1时,a是()1,当3.6除以a等于1时,a是()1,当a乘0.8等于1时

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数学问题,急,化简和填空,大哥大姐帮帮忙化简6a+13a                     6x-28-2.5x+30.5          8a-(5a+8)            (5x+7)-(4x+0.18) 填空当a除以0.1等于1时,a是()1,当3.6除以a等于1时,a是()1,当a乘0.8等于1时
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数学问题,急,化简和填空,大哥大姐帮帮忙化简6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18) 填空当a除以0.1等于1时,a是()1,当3.6除以a等于1时,a是()1,当a乘0.8等于1时
数学问题,急,化简和填空,大哥大姐帮帮忙
化简
6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18)

填空
当a除以0.1等于1时,a是()1,当3.6除以a等于1时,a是()1,当a乘0.8等于1时,a()1,当360乘a等于1时,a().
28.7除以()等于478.3于0.002
今天要搞定啦

数学问题,急,化简和填空,大哥大姐帮帮忙化简6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18) 填空当a除以0.1等于1时,a是()1,当3.6除以a等于1时,a是()1,当a乘0.8等于1时
6a+13a
=19a
6x-28-2.5x+30.5
=(6-2.5)x+(30.5-28)
=3.5x+2.5
8a-(5a+8)
=8a-5a-8
=3a-8
(5x+7)-(4x+0.18)
=5x+7-4x-0.18
=x+6.82
当a除以0.1等于1时,a是(10)a>1,
当3.6除以a等于1时,a是(3.6),a>1,
当a乘0.8等于1时,a(1.25),a>1,
当360乘a等于1时,a(<1).
28.7除以(0.06)等于478.3于0.002

19a,3.5x+2.5,3a-8,x+6.82

一群笨蛋 等于0

19a 3.5x+2.5 3a-8 x+6.82
填空
0.1 3.6 1.25 1/360

19a 3.5x+2.5 3a-8 x+6.82
0.1 3.6 1.25 三百六十分之一

(1)19a
(2)3.5x-2.5
(3)3a-8
(4)x+6.82
填空
0.1 3.6 1.25(大于) 1/360 0.06

化简
6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18)
=19a =6x-2.5x-28+30.5 =8a-5a-8 =5x+7-4x-0.18
...

全部展开

化简
6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18)
=19a =6x-2.5x-28+30.5 =8a-5a-8 =5x+7-4x-0.18
=3.5x+2.5 =3a-8 =5x-4x+7-0.18
=x+6.82
填空
当a除以0.1等于1时,a是(0.1),当3.6除以a等于1时,a是(3.6),当a乘0.8等于1时,a(1.25),当360乘a等于1时,a(1/360)。
28.7除以(0.06)等于478.3于0.002

收起

6a+13a =21a,6x-28-2.5x+30.5 =3.5x+2.5, 8a-(5a+8) =3a-8,
(5x+7)-(4x+0.18)=x-6.82
当a除以0.1等于1时,a是(0.1),当3.6除以a等于1时,a是(3.6),当a乘0.8等于1时,a(0.8),当360乘a等于1时,a(360)。
28.7除以(0.06)等于478.3于0.002

19a
3.5x+1.5
3a-8
x+6.82
0.1
3.6
1.25
1/360
16.67

6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18)
=19a =(6x-2.5x)+(30.5-28) =8a-5a-8 =5x+7-4x-0.18
=3.5x+2.5 ...

全部展开

6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18)
=19a =(6x-2.5x)+(30.5-28) =8a-5a-8 =5x+7-4x-0.18
=3.5x+2.5 =3a-8 =x+6.82
当a除以0.1等于1时,a是(0.1)
当3.6除以a等于1时,a是(3.6)
当a乘0.8等于1时,a(1.25)
当360乘a等于1时,a(约等于0.003)。
28.7除以(0.06)等于478.3于0.002

收起