18,5 : 0,5 + 18,5 : 0,25 + 18,5 × 4
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.


18 , 5 x 0 , 25 + 2 , 5 : 4 - 1/4
= 18 , 5 x 1/4 + 2 , 5 x 1/4 - 1/4 x 1
= ( 18 , 5 + 2 , 5 - 1 ) x 1/4
= 20 x 1/4
= 5
Chúc bạn học tốt !!!

A: 4O* 0.25 : 2 + 12 * 0.5
= 5 + 6
= 11
B: 18.5 : 4.6 + 14.8 : 4.6 + 12.7 : 4.6
= 185/46 + 74/23 + 127/16
= 10

a) \(6,15:0,5+6,15:0,2+3x6,15\)
\(=6,15x\left(1:0,5+1:0,2+3\right)=6,15x\left(2+5+3\right)=6,15x10=61,5\)
b) \(0,215x74,24+25,76x0,215+18,5\)
\(=0,215x\left(74,24+25,76\right)+18,5=0,215x100+18,5=21,5+18,5=40\)
`@` `\text {Ans}`
`\downarrow`
`4,`
`a)`
\( 6,15 \div 0,5 + 6,15 \div 0,2 + 3 \times 6,15 \)
`= 6,15 \times 2 + 6,15 \times 5 + 3 \times 6,15`
`= 6,15 \times (2 + 5 + 3)`
`= 6,15 \times 10`
`= 61,5`
`b)`
`0,215 \times 74,24 + 25,76 \times 0,215 + 18,5 `
`= 0,215 \times (74,24 + 25,76) + 18,5`
`= 0,215 \times 100 + 18,5`
`= 21,5 + 18,5`
`=40`

Bạn tham khảo link này:
https://olm.vn/hoi-dap/detail/77900328857.html
a) 15,3: ( 1+0,25.16) =15,3: ( 1+4) = 15,3:5=3,06
b) 1,6. 1,1 + 1,8 : 4=1,76+0,45=2,21
c) 40,28-22,5:12,5 + 1,7= 40,28-1,8+1,7=38,48+1,7=40,18
d) 18,5 - 3.5 + 5,704=15+5,704=20,704

\(G^2=18,5-6\sqrt{3}+18,5+6\sqrt{3}-2\sqrt{\left(18,5-6\sqrt{3}\right)\left(18,5+6\sqrt{3}\right)}\)
\(=37-2.\sqrt{18,5^2-\left(6\sqrt{3}\right)^2}\)
\(=37-2.\sqrt{\frac{937}{4}}=37-2.\frac{\sqrt{937}}{2}\)
\(=37-\sqrt{937}\)\(\Rightarrow G=\sqrt{37-\sqrt{937}}\)

Duyet nhe !!
Bai giai :
75 x X – 131,5 = 18,5
75 x X = 18,5 + 131,5 = 150
X = 150 : 75
X = 2
TÔI CẦN GẤP
18,5 : 0,5 + 18,5 : 0,25 + 18,5 × 4
= 18,5 + 0,5 + 0,25 × 4
= 18,5 + 0,5 × 1
= 19✔