97/100 dm3 = cm3
\dfrac{97}{100} |
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3 dm3 =300.........cm3 0,5 dm3 =.500........cm3 1/100 dm3 =0,00001........cm3
2,7 m3 =..2700000........cm3 0,05 m3 =..50000........cm3 1/500 m3 =.0,000002.........cm3
12 cm3 =0,012..........dm3 355 cm3 =.0,355.........dm3 0,5 cm3 =..0,0005..........dm3
97 m3 =...97000.........dm3 2,5 m3 =......2500.......dm3 0,7 m3 =...0,0007.........dm3
5 cm3 =..0, 000005........m3 2376 cm3 =..0,002376.........m3 45 dm3 =..0,045..........m3
10,5 dm3 =.0,0105.........m3 0,25 dm3 =..0,00025..........m3 3576 dm3 =...........m3
A.25 dm3 = 25 000 cm3 C.80 000 cm3 = 0,08 m3
30/100 m3 = 300 dm3 3/4 dm3 = 750 cm3
1/100 dm3 = 10 cm3
1/500 dm3 = 20 cm3
NHỚ K CHO MK NHÉ !
CHÚC BẠN HOK TỐT !
0,235 dm3 = 235 m3 150 dm3 = 0,15 m3 = 150 dm3
0,18 dm3 = 180 m3 97 dm3 = 0,097 m3 = 97 dm3
0,09 dm3 = 90 m3 5 dm3 = 0,005 m3 =5 dm3
0,08 dm3 = 80 m3 1234689 cm3 = 1,234689 m3 = 1234,689 dm3 = 1234,689 dm3
1234689 cm3 = 1,2344689 m3 = 1234689 cm3
Chúc bạn học tốt !!!!!!!!!!!!!!!
1234689 cm3 = 1234,689 dm3 = 1234689 cm3
Ta có: \(\dfrac{\dfrac{1}{99}+\dfrac{2}{98}+\dfrac{3}{97}+...+\dfrac{99}{1}}{\dfrac{1}{2}+\dfrac{1}{3}+...+\dfrac{1}{100}}\)
\(=\dfrac{\dfrac{1}{99}+1+\dfrac{2}{98}+1+\dfrac{3}{97}+1+...+\dfrac{99}{1}-98}{\dfrac{1}{2}+\dfrac{1}{3}+...+\dfrac{1}{100}}\)
\(=\dfrac{\dfrac{100}{99}+\dfrac{100}{98}+\dfrac{100}{97}+...+\dfrac{100}{2}+\dfrac{100}{100}}{\dfrac{1}{2}+\dfrac{1}{3}+...+\dfrac{1}{100}}\)
=100
5,3m3 = 5300dm3
0,09m3 = 90 cm3
6320099dm3 = 6320,099cm3
\(\frac{25}{100}\) dm3 = 250cm3
1,85m3 = 1850dm3
0,18m3 = 180000cm3
Ai k mk mk k lại, k nha Kênk tổng Hợp
Ta có: \(M=\dfrac{\dfrac{1}{99}+\dfrac{2}{98}+\dfrac{3}{97}+\dfrac{4}{96}+...+\dfrac{97}{3}+\dfrac{98}{2}+\dfrac{99}{1}}{\dfrac{1}{2}+\dfrac{1}{3}+\dfrac{1}{4}+\dfrac{1}{5}+\dfrac{1}{6}+...+\dfrac{1}{100}}\)
\(=\dfrac{\left(1+\dfrac{1}{99}\right)+\left(1+\dfrac{2}{98}\right)+\left(1+\dfrac{3}{97}\right)+\left(1+\dfrac{4}{96}\right)+...+\left(1+\dfrac{98}{2}\right)+1}{\dfrac{1}{2}+\dfrac{1}{3}+\dfrac{1}{4}+\dfrac{1}{5}+\dfrac{1}{6}+...+\dfrac{1}{100}}\)
\(=\dfrac{\dfrac{100}{99}+\dfrac{100}{98}+\dfrac{100}{97}+...+\dfrac{100}{1}+\dfrac{100}{2}}{\dfrac{1}{2}+\dfrac{1}{3}+\dfrac{1}{4}+\dfrac{1}{5}+\dfrac{1}{6}+...+\dfrac{1}{100}}\)
=100
Ta có: \(N=\dfrac{92-\dfrac{1}{9}-\dfrac{2}{10}-\dfrac{3}{11}-...-\dfrac{90}{98}-\dfrac{91}{99}-\dfrac{92}{100}}{\dfrac{1}{45}+\dfrac{1}{50}+\dfrac{1}{55}+...+\dfrac{1}{495}+\dfrac{1}{500}}\)
\(=\dfrac{\left(1-\dfrac{1}{9}\right)+\left(1-\dfrac{2}{10}\right)+\left(1-\dfrac{3}{11}\right)+...+\left(1-\dfrac{90}{98}\right)+\left(1-\dfrac{91}{99}\right)+\left(1-\dfrac{92}{100}\right)}{\dfrac{1}{5}\left(\dfrac{1}{9}+\dfrac{1}{10}+\dfrac{1}{11}+...+\dfrac{1}{99}+\dfrac{1}{100}\right)}\)
\(=\dfrac{\dfrac{8}{9}+\dfrac{8}{10}+\dfrac{8}{11}+...+\dfrac{8}{99}+\dfrac{8}{100}}{\dfrac{1}{5}\left(\dfrac{1}{9}+\dfrac{1}{10}+\dfrac{1}{11}+...+\dfrac{1}{99}+\dfrac{1}{100}\right)}\)
\(=\dfrac{8}{\dfrac{1}{5}}=40\)
\(\Leftrightarrow\dfrac{M}{N}=\dfrac{100}{40}=\dfrac{5}{2}\)
đ/s
970 cm3