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

Toán Lớp 5: a, x x 25,6 = 128 b, 17,8 x x = 360,05 – 9.,05 c, 29,5 x ( x + 10,25) = 376,125 d, 748 : ( x – 31,72) =13,6

Home/ Toán Lớp 5: a, x x 25,6 = 128 b, 17,8 x x = 360,05 – 9.,05 c, 29,5 x ( x + 10,25) = 376,125 d, 748 : ( x – 31,72) =13,6

Toán Lớp 5: a, x x 25,6 = 128 b, 17,8 x x = 360,05 – 9.,05 c, 29,5 x ( x + 10,25) = 376,125 d, 748 : ( x – 31,72) =13,6

Tháng Ba 25, 2023 Toán học 2 Comments 0 views

Toán Lớp 5: a, x x 25,6 = 128
b, 17,8 x x = 360,05 – 9.,05
c, 29,5 x ( x + 10,25) = 376,125
d, 748 : ( x – 31,72) =13,6

Comments ( 2 )

  1. hoaiphuong85
    hoaiphuong85
    25 Tháng Ba, 2023 at 2:36 chiều
    Reply
    a,
    x xx 25,6 = 128
    x=128 : 25,6
    x=5
    ______________________
    b,
    17,8 xx x = 360,05 – 9,05
    17,8 xx x = 351
    x=351:17,8
    x=19,7191
    __________________________
    c,
    29,5 xx (x+10,25) = 376,125
    x+10,25 = 376,125 : 29,5
    x+10,25=12,75
    x=12,75-10,25
    x=2,5
    _____________________________
    d,
    748 : (x-31,72) = 13,6
    x-31,72=784:13,6
    x-31,72=55
    x=55+31,72
    x=86,72
     

  2. cobelolen
    cobelolen
    25 Tháng Ba, 2023 at 2:36 chiều
    Reply
    $\text{a) x × 25,6 = 128}$
          $\text{x = 128 : 25,6 }$
          $\text{x = 5}$
    $\text{b) 17,8 × x = 360,05 – 9,05}$
        $\text{17,8 × x = 351}$
              $\text{ x = 351 : 17,8}$
              $\text{x = 19,7191}$
    $\text{c) 29,5 × ( x + 10,25 ) = 376,125}$
            $\text{x + 10,25 = 376,125 : 29,5}$
            $\text{x + 10,25 = 12,75}$
              $\text{x = 12,75 – 10,25}$
            $\text{  x = 2,5}$
    $\text{d) 748 : ( x – 31,72 ) = 13,6}$
            $\text{ x – 31,72 = 748 : 13,6}$
            $\text{x – 31,72 = 55}$
                $\text{ x = 55 + 31,72}$
                $\text{x = 86,72}$
    $\text{Xin hay nhất và 5 sao ạ}$

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

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