Tìm x
(34\7.13+51\13.22+85\22.37+68\37.49+170\49.79+799\79.126).x=289\9
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Tìm x biết
( \(\dfrac{34}{7.13}+\dfrac{51}{13.22}+\dfrac{85}{22.37}+\dfrac{68}{37.49}+\dfrac{170}{49.79}+\dfrac{779}{79.126}\)) . x = \(\dfrac{289}{9}\)
\(\dfrac{\Leftrightarrow3A}{17}=\left(\dfrac{6}{7.13}+\dfrac{9}{13.22}+\dfrac{15}{22.37}+\dfrac{12}{37.49}+\dfrac{30}{49.79}+\dfrac{47}{79.126}\right)x=\dfrac{289}{9}\)
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Tìm x biết
\(\left(\dfrac{34}{7.13}+\dfrac{51}{13.22}+\dfrac{85}{22.37}+\dfrac{68}{37.49}+\dfrac{170}{49.126}\right)\).x=\(\dfrac{289}{9}\)
A= 34/7.13+51/13.22+85/22.37+68/37.49 = ?
A= 34/7.13+51/13.22+85/22.37+68/37.49 = ?
Cho
A=34/7.13+51/13.22+85/22.37+68/37.49
17 tháng 10 2023 lúc 15:42
Tính: \(A=\dfrac{34}{7.13}+\dfrac{51}{13.22}+\dfrac{85}{22.37}+\dfrac{68}{37.49}\)
\(\dfrac{3}{17}A=\dfrac{6}{7.13}+\dfrac{9}{13.22}+\dfrac{15}{22.37}+\dfrac{12}{37.49}\)
\(\dfrac{3}{17}A=\dfrac{1}{7}-\dfrac{1}{13}+\dfrac{1}{13}-\dfrac{1}{22}+\dfrac{1}{22}-\dfrac{1}{37}+\dfrac{1}{37}-\dfrac{1}{49}\)
\(\dfrac{3}{17}A=\dfrac{1}{7}-\dfrac{1}{49}=\dfrac{6}{49}\)
\(A=\dfrac{6}{49}:\dfrac{3}{17}=\dfrac{6.17}{49.3}=\dfrac{34}{49}\)
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Tính :(34/7.13+51/13.22+85/22.37+68/37.49):(39/7.16+65/16.31+52/31.43+26/43.49
\(\frac{34}{7.13}.\:\frac{51}{13.22}.\frac{85}{22.37}.\frac{68}{37.49}\)
ChoA=34/7.13+51/13.22+85/22.37+68/37.49
B=39/7.16+65/16.31+52/31.43+26/43.49