a,( 17/10 + 7 - 8,7 ) : ( 23/4 - 11/2 + 9/25 ) x ( 12,98 x 0,25 ) + 12,5
b, ( x - 1/2 ) x 5/3 = 7/4 - 1/2
c, ( 1+4 +7+...............+ 100 ) : x = 17
( 17/10+7-8,7) : (23/4 -11/2+ 9/25)x(12,98x0,25)+12,5 = ?
(17/10+7-8,7):(23/4-11/2+9/25)x(12,98x0,25)+12,5
a (17/10*7-8,7)/(23/4-11/2+9/24)*12,98*0,25+12,5
b 1 2/24*5 2/5*2*3 7/9*2*2/17
c)(12,98+0,25)x(17/10+7-8,7):(23-11/12+9/25)+12,7-x=5
trả lời được thì tôi đánh tích
tính giá trị biểu thức
\(\left(\frac{17}{10}+7-8,7\right):\left(\frac{23}{4}-\frac{11}{2}+\frac{9}{25}\right)x\left(12,98x0,25\right)+12,5\)
\(1\frac{2}{24}x5\frac{2}{5}x2x3\frac{7}{9}x2x\frac{2}{17}\)
\(2\frac{2}{17}x1\frac{1}{24}x5\frac{2}{5}x3\frac{7}{9}x2\)
\(3x\left(\frac{1}{7}+\frac{1}{3}-\frac{3}{14}\right):\frac{11}{14}\)
\(\left(1\frac{3}{2}+2\frac{1}{5}\right)x1\frac{1}{10}+\left(1\frac{7}{10}-\frac{4}{5}\right):\frac{3}{7}\)
6/ tinh gia tri cua bieu thuc M, voi a = 119 va b = 0, biet: M = b: (119 x a + 2005) + (119 : a - b x 2005)
7/ Tinh gia tri bieu thuc a) [17/10 + 7 - 8,7 ] : [ 23/4 - 11/2 + 9/25 ] x [ 12,98 x 0,25 ] + 12,5
ai lam nhanh nhat minh tich cho
(\(\frac{17}{10}\)+7 - 8,7) : (\(\frac{23}{4}\)-\(\frac{11}{2}\)+\(\frac{9}{25}\)x ( 12,98 x 0,25 ) + 12,5
1\(\frac{2}{24}\)x 5\(\frac{2}{5}\)x 2 x 3\(\frac{7}{9}\)x 2 x\(\frac{2}{17}\)
Ai giải đúng nhanh mình tick cho
(17/10+7-8,7): (23/4-11/2+9/25).(12,98.0,25) =?
