Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Ta có:
5,31=5,310
5,32=5,320
x= 5,311; 5,312; 5,314; 5,315; 5,316
hrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
96,73 * 5348 = 517 312,04
36,98 : 5,32 = 6,95 (dư 0,60)
48,54 * 89,6 = 4349,184
998,6 : 5,3 = 188,41 (dư 2,7)
873,7 : 63 = 13,86 ( Dư 52 )
5,217 * 8,62 = 44,97054
\(y\times5,3=10,812\) \(b)=98,08+194,208\)
\(y=10,812:5,3\) \(=292,288\)
\(y=2,04\)
Y x 5,3 = 54,06 : 5
y x 5,3 = 10,812
y = 10,812 : 5,3
y = 2,04
24,52 : 0,25 + 47,6 x 4,08
98,08 + 194,208
292,288
14,37 x 5,3 - 5,3 x 5,17 = 48,76
17 giờ 36 phút : 8 = 2 giờ 12 phút
a) Ta có:
1; 4; 7;...; 100 có (100 - 1) : 3 + 1 = 34 (số)
1 + 4 + 7+ ... + 100 = (100 + 1) × 34 : 2
= 101 × 17
(1 + 4 + 7 + ... + 100) : a = 17
101 × 17 : a = 17
a = 101 × 17 : 17
a = 100
b) (X - 1/2) × 5/3 = 7/4 - 1/2
(X - 1/2) × 5/3 = 5/4
X - 1/2 = 5/4 : 5/3
X - 1/2 = 3/4
X = 3/4 + 1/2
X = 5/4
a) (1 + 4 + 7 +...+ 100) : a = 17
1717 : a = 17
a = 101
b) \(\left(x-\dfrac{1}{2}\right)\times\dfrac{5}{3}=\dfrac{7}{4}-\dfrac{1}{2}\)
\(\left(x-\dfrac{1}{2}\right)\times\dfrac{5}{3}=\dfrac{10}{8}\)
\(\left(x-\dfrac{1}{2}\right)=\dfrac{10}{8}\div\dfrac{5}{3}\)
\(\left(x-\dfrac{1}{2}\right)=\dfrac{10}{8}\times\dfrac{3}{5}\)
\(\left(x-\dfrac{1}{2}\right)=\dfrac{3}{4}\)
\(x-\dfrac{1}{2}=\dfrac{3}{4}\)
\(x=\dfrac{3}{4}+\dfrac{1}{2}\)
\(x=\dfrac{5}{4}\)
\(x\in\left\{5,31;5,312;5,313;5,314;5,315\right\}\)
cảm ơn bn nha