1237(dư 3)

Bạn j ơi, bạn có thể chụp ảnh cho mik xem được ko? 

a) 75 x X = 1800

X = 1800 : 75

X =24

b) 1855 : x = 35

X = 1855 : 35

X = 53

a) 75 x X = 1800

            X = 1800 : 75

            X = 24

b) 1855 : x = 35

               x = 1855 : 35

                x = 53

x = 5 < 6;7;8 < 9

ai tick mik mik tick lại cko

a)

\(\left(x-\dfrac{2}{3}\right):\dfrac{1}{2}=\dfrac{5}{7}\)

\(\Rightarrow x-\dfrac{2}{3}=\dfrac{5}{7}\) x \(\dfrac{1}{2}\)

\(\Rightarrow x-\dfrac{2}{3}=\dfrac{5}{14}\)

\(\Rightarrow x=\dfrac{5}{14}+\dfrac{2}{3}\)

\(\Rightarrow x=\dfrac{15}{42}+\dfrac{2}{42}\)

\(\Rightarrow x=\dfrac{17}{42}\)

b)

\(x\) x \(\dfrac{1}{2}=1-\dfrac{1}{3}\)

\(x\) x \(\dfrac{1}{2}=\dfrac{3}{3}-\dfrac{1}{3}\)

\(x\) x \(\dfrac{1}{2}=\dfrac{2}{3}\)

\(\Rightarrow x=\dfrac{2}{3}:\dfrac{1}{2}\)

\(\Rightarrow x=\dfrac{2}{3}\) x \(2=\dfrac{4}{3}\)

c)

\(\dfrac{26}{5}-x=\dfrac{9}{15}\) x \(\dfrac{25}{3}\)

\(\dfrac{26}{5}-x=5\)

\(\Rightarrow x=\dfrac{26}{5}-5\)

\(\Rightarrow x=\dfrac{26}{5}-\dfrac{25}{5}\)

\(\Rightarrow x=\dfrac{1}{5}\)

tick mik rùi mik tick lại

hay thiệt, bạn lên trang quảng cáo rồi

3/15 - 5/35

3/15 = 1/5

5/35 =1/7

=>1/5 - 1/ 7

= 7/35 - 5 / 35

=2/35

3/15 - 5/35 = 1/5 - 1/7 = 7/35 - 5/35 = 2/35

144  nha bạn học tốt

144

a, ab : ab = 1

b,  abab : ab = 101

c, 1045 : 5 = 209

k cho mình nha

ab:ab=1

abab:ab=101

1045:5=209

Ủng hộ mik nha