\(x\times\frac{11}{5}-x\times\frac{4}{7}=\frac{5}{77}\)
\(x\times\left(\frac{11}{5}-\frac{4}{7}\right)=\frac{5}{77}\)
\(x\times\frac{57}{35}=\frac{5}{77}\)
\(x=\frac{5}{77}:\frac{57}{35}\)
\(x=\frac{25}{627}\)
\(x\times\frac{11}{5}-x\times\frac{4}{7}=\frac{5}{77}\)
\(x\times\left(\frac{11}{5}-\frac{4}{7}\right)=\frac{5}{77}\)
\(x\times\frac{57}{35}=\frac{5}{77}\)
\(x=\frac{5}{77}:\frac{57}{35}\)
\(x=\frac{25}{627}\)
X x \(\frac{11}{5}\) - X x\(\frac{4}{7}\) = \(\frac{5}{77}\)
bài này tìm ra X rồi nhân lại giúp mik nha X ko = \(\frac{25}{628}\)đâu
Tính giá trị các biểu thức sau một cách nhanh nhất:
a) 0.2 x 517 x 7 x 0.7 x 483 x 2
b) \(\frac{4}{9}+\frac{6}{11}+\frac{5}{9}+\frac{16}{11}+7\)
c) \(\frac{3}{5}+\frac{5}{1}+\frac{7}{13}+\frac{2}{5}+\frac{16}{11}+\frac{19}{13}\)
\(A=\left(6:\frac{3}{5}-1\frac{1}{6}x\frac{6}{7}\right):\left(4\frac{1}{5}x\frac{10}{11}+5\frac{2}{11}\right)\)\(B=\left(1-\frac{1}{2}\right)x\left(1-\frac{1}{4}\right)x.......x\left(1-\frac{1}{2015}\right)x\left(1-\frac{1}{2016}\right)\)
\(C=5\frac{9}{10}:\frac{3}{2}-\left(2\frac{1}{3}x4\frac{1}{2}-2x2\frac{1}{3}\right):\frac{7}{4}\)
tìm x:
a) \(x-\frac{5}{7}-\frac{13}{14}=1\) b) \(\frac{3}{5}+x+1\frac{1}{5}=\frac{11}{3}\) c) \(x.\frac{4}{5}:2=\frac{6}{7}\) d) \(\frac{6}{5}:x:\frac{5}{4}=\frac{10}{15}\)
\(y=\frac{6:\frac{3}{5}-1\frac{1}{6}x\frac{6}{7}}{4\frac{1}{5}x\frac{10}{11}+5\frac{2}{11}}\)=?
Tìm X:
\(\left[\left(35\frac{5}{7}+2\frac{3}{4}\right)-5\frac{5}{7}+\frac{1}{4}\right]:\left(11+X\right)=3\)
(6:\(\frac{3}{5}\)-\(1\frac{1}{7}\)x \(\frac{7}{8}\)):(\(4\frac{1}{5}\)x \(\frac{10}{11}\)+\(5\frac{2}{11}\)) x \(1\frac{2}{5}\)x\(2\frac{1}{7}\)
Tìm a
a) 24+3x(5xa)=27
b) (1,5 - a ):\(\frac{3}{4}=\frac{20}{9}\)
c) a x \(2\frac{1}{5}-\)a x\(\frac{4}{7}=\frac{5}{77}\)
d) {37 -2 x (a - 3,25)} : 5 = 7,06
Bài 1:
a, \(\frac{3}{5}\)+ \(\frac{6}{11}\)+\(\frac{7}{13}+\frac{6}{11}\)+\(\frac{2}{5}+\frac{19}{13}\)
b,\(\frac{6}{5}\)x\(\frac{3}{8}+\frac{5}{8}\)x\(\frac{6}{5}-\frac{4}{5}\)
c,4 x 5 x 6 x 7 x 8
________________
8 x 10 x12 x 14x 16
