Register Now

Login

Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: giup mik vơi: (3/10-x):2/5=3/5

Toán Lớp 6: giup mik vơi:
(3/10-x):2/5=3/5

Comments ( 2 )

  1. ($\frac{3}{10}$ – x) : $\frac{2}{5}$ = $\frac{3}{5}$
     $\frac{3}{10}$ – x                         = $\frac{2}{5}$ × $\frac{3}{5}$
     $\frac{3}{10}$ – x                         = $\frac{6}{25}$ 
              x                                         = $\frac{3}{10}$ – $\frac{6}{25}$ 
              x                                         = $\frac{75}{250}$ – $\frac{60}{250}$ 
              x                                         = $\frac{15}{250}$
              x                                         = $\frac{3}{50}$
    Vậy    x                                         = $\frac{3}{50}$

  2. Giải đáp:
    ($\dfrac{3}{10}$-x):$\dfrac{2}{5}$=$\dfrac{3}{5}$
    $\text{($\dfrac{3}{10}$-x)=$\dfrac{3}{5}$×$\dfrac{2}{5}$}$
    $\text{$\dfrac{3}{10}$-x=$\dfrac{6}{25}$}$
    $\text{x=$\dfrac{3}{10}$-$\dfrac{6}{25}$}$
    $\text{x=$\dfrac{15}{50}$-$\dfrac{12}{50}$}$
    $\text{x=$\dfrac{3}{50}$}$
    $\text{Vậy x=$\dfrac{3}{50}$}$

Leave a reply

222-9+11+12:2*14+14 = ? ( )