3.54x73+0.23x25+3.54x27+0.15:\(\frac{1}{25}\)
\(728:\left(73x3.54+0.17x25+3.54x27+0.23x25\right)\)
728 : (73 x 3,54 + 0,17 x25 +3,5 x27 +0,23x25 )
728 :( 258 ,42 +4,25 +95,58+5,75 )
728 : 364
Bằng 2
\(6.\left|\dfrac{1}{3}\right|-\sqrt{25}+0.15-\left(-2\right)^2\)
\(=\dfrac{1}{3}-5+0,15-4=\dfrac{1}{3}+\dfrac{3}{20}-9=-\dfrac{511}{60}\)
\(6.\left|\dfrac{1}{3}\right|-\sqrt{25}+0,15-\left(-2\right)^2\)
\(=6.\dfrac{1}{3}-5+\dfrac{3}{20}-4\)
\(=2-5+\dfrac{3}{20}-4\)
\(=\left(-3\right)+\dfrac{3}{20}-4\)
\(=\left(\dfrac{-57}{20}\right)-4\)
\(=\dfrac{-137}{20}\)
(25%:0.45+50%x50)x(0.15%-0.75x0.2%)
(25%:0.45+50%x50)x(0.15%-0.75x0.2%)=0
0.25 nhan 25 +19,96 nhan 31+0.15 nhan 25+19,96 nhan 69
0,25 x 25 + 19,96 x 31 + 0,15 x 25 + 19,96 x 69
= 25 x ( 0,25 + 0,15 ) + 19,96 x ( 31 + 69 )
= 25 x 0,4 + 19,96 x 100
= 10 + 1 996
= 2 006
\(\left\{\left[\left(6.2:0.31-\frac{5}{6}\cdot0.9\right)\cdot0.2+0.15\right]:0.2\right\}:\left[\left(2+1\frac{4}{11}\cdot0.22:0.1\right)\cdot\frac{1}{33}\right]\)
a: x/3,15=0.15/7.2
b: -2,6/x=-12/42
c: x-1/x+5=6/7
d: x/6=24/25
\(\frac{x}{3,15}=\frac{0,15}{7,2}\)
\(\Rightarrow x=\frac{0,15.3,15}{7,2}\)
\(\Rightarrow x=0,065625\)
b) \(\frac{-2,6}{x}=\frac{-12}{42}\)
\(\Rightarrow x=\frac{-2,6.42}{-12}\)
\(\Rightarrow x=9,1\)
Tính giá trị biểu thức sau: =( 25% : 0.45 +50% x 50 ) x ( 0.15% - 0.75 x 0.2%)
ăn gian vì mày lấy câu hỏi ở violympic tao biết rồi
Tính giá trị biểu thức sau: =( 25% : 0.45 +50% x 50 ) x ( 0.15% - 0.75 x 0.2%)
(0.10+0.11+0.12+...+0.19)x2+37.03
728:(73x3.54+0.17x25+3.24x27+0.23x25)
Ai lam giup voi dang can gap ko thoi bi thay kiem tra ai lam giup tk cho nhe