\(18:\frac{\left(0.4\times y+1.6\right)}{y}=9\)
=> \(\frac{0.4\times y+1.6}{y}=2\)
=> y = (2 - 1.6) : 0.4
=> y = 1
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Các câu hỏi tương tự
Tìm y :
\(1,2\times\left(\frac{2,4\times y-0,23}{y}-0,05\right)=1,44\left(y>0\right)\)
Tìm y biết 0,4: y=1,6-0,5 : y
\(\left(\frac{1}{1\times3}+\frac{1}{3\times5}+\frac{1}{5\times7}+\frac{1}{7\times9}+\frac{1}{9\times11}\right)\times y=\frac{2}{3}\)
Tìm y
tìm x,y :
\(\frac{1}{2}-\left(6\frac{5}{9}+x-\frac{117}{8}\right):\left(12\frac{1}{9}\right)=0\)
\(\left(y+\frac{1}{3}\right)+\left(y+\frac{2}{9}\right)+\left(y+\frac{1}{27}\right)+\left(y+\frac{1}{81}\right)=\frac{56}{81}\)
Tìm y :
\(1,2\times\left(\frac{2,4\times y-0,23}{y}-0,05\right)=1,44\)
\(\frac{3,06:75+340,38}{19-2,605}\times\frac{\left(1,6-1-0.6\right)\times\left(2,25-0,76\right)}{1,6+2.53}\)
Bài 10. Tìm y
a) 0,4 : y = 1,6 - 0,5 : y b) y : 3,1 = 1,47 ( dư 0,013)
bài 2 : Tìm y
a)\(\frac{37-2x\left(y-3,25\right)}{5}=7,06\)
b) 3/2 x y - 2/7 x ( x - 7/2 ) =18
c) 5/12 x ( 8 + x ) - 1/5x ( 15/4 + x ) =15
d) 13,44 x X - ( 1,6 + x ) x 0,5 -3,7 x ( x - 0,9 ) = 13,618
Ai làm được em tick 3 cái
Tìm Y, biết \(\left(y-\frac{1}{2}\right)\div\left(\frac{1}{2}+\frac{1}{6}+\frac{1}{12}+\frac{1}{20}+.....+\frac{1}{90}\right)=\frac{1}{3}\)