標題:

p.6小學數學(解方程)20點呀~!快快快~明天要比th......

發問:

要有方程~! 1. 4 -xk=108 9 2. 2 -xh-15=25 3 3. 450-5g=205 4. 4n1 -=------ 914418 5.48-2p=24 6.5.2+w÷ 5.2 ÷ 2.3 更新: 6.5.2+w÷5=2.3 w=?

最佳解答:

1. 4 -xk=108 9 k = 108 * 9 / 4 k = 243 2. 2 -xh-15=25 3 h = ( 25 + 15 ) * 3 /2 h = 60 3. 450-5g=205 g = (450 - 205) / 5 g = 40 4. 4n1 -=------ 914418 n = ( 4 / 9 + 1 / 18 ) * 144 n = (8 + 1)/18 * 144 n = 72 5.48-2p=24 p = ( 48 - 24) /2 p = 12 6.2 =w÷ 5.2 ÷ 2.3 w = 2 * 52 * 23 w = 2392

aa.jpg

 

此文章來自奇摩知識+如有不便請留言告知

其他解答:

1. 4 -xk=108 9 k=108(9/4) =243 2. 2 -xh-15=25 3 h=(25+15)(3/2) =60 3. 450-5g=205 g=(205-450)(1/-5) =49 4. 4n1 -=------ 914418 n=144(4/9+1/18) =72 5.48-2p=24 p=(24-48)(1/-2) =12 6.5.2+w÷5=2.3 w=5(2.3-5.2) =-14.5|||||1. 4k/9 = 108 4k = 108 x 9 k = 108 x 9 /4 k= 243 2. 2/3 x h = 25 + 15 2h = 40 x 3 h = 120 / 2 h = 60 3. 5g = 450 - 205 g = 245 / 5 g = 49 4. 先 9, 144, 18通分母: n/144 = 4/9+1/18 n/144 = 1/2 n = 72 5. 2p = 48 -24 p = 24 / 2 p= 12 6. 5.2+w÷5=2.3 w / 5 = 2.3 - 5.2 w = -2.9 x 5 w = -14.5 6 5.2 w ÷ 5 = 2.3 5.2 w = 2.3 x 5 w = 11.5 - 5.2 w = 6.3|||||1) 4 / 9 x k = 108 k = [(108)x9 ] ÷ 4 *(凡將一乘數調過對面,須將其分子分母顛倒。) k = 243 ─────────────────────────────────────── 2) 2 / 3 x h - 15 =25 h = [(25 + 15)x3] ÷ 2 h = 40 x 3 ÷ 2 h = 60 ─────────────────────────────────────── 3) 450 - 5g = 205 450 - 205 = 5g 245 = 5g 245 ÷ 5 = g g = 49 ─────────────────────────────────────── 4) 4 / 9 = n / 144 - 1 / 18 4 / 9 + 1 / 18 = n / 144 *(負數調過去變正數) (4x2 + 1) ÷ 18 = n / 144 *(主行通分母(18),由於9乘2才=18,因此其分子也要乘上2) (9 / 18 ) x 144 = n n = 72 ─────────────────────────────────────── 5) 48 - 2p = 24 48 - 24 = 2p 24 = 2p p = 24 / 2 p = 12 ─────────────────────────────────────── 6) 5.2 + w ÷ 5 = 2.3 5.2 + w = 2.3 x 5 w = 2.3 x 5 - 5.2 w = 6.3 ───────────────────────────────────────|||||4 1.-xk =108 9 k = 108 x4 _ 9 k=48 2 2. -xh-15=25 3 h = 25+15 除以2 _ 3 h = 35 3. 450-5g=205 -5g = 450 - 205 -5g = 245 g = 49 5.48-2p=24 -2p = 48+24 -2p = 72 p = 36|||||1. 4k/9 = 108 4k = 108 x 9 k = 108 x 9 /4 k= 243 2. 2/3 x h = 25 + 15 2h = 40 x 3 h = 120 / 2 h = 60 3. 5g = 450 - 205 g = 245 / 5 g = 49 4. 先 9, 144, 18通分母: n/144 = 4/9+1/18 n/144 = 1/2 n = 72 5. 2p = 48 -24 p = 24 / 2 p= 12 6. 5.2+w÷5=2.3 w / 5 = 2.3 - 5.2 w = -2.9 x 5 w = -14.5 2007-04-24 10:22:06 補充: 不好意思算錯了第6條...........6 5.2 w ÷ 5 = 2.3 5.2 w = 2.3 x 5 w = 11.5 - 5.2 w = 6.3|||||3. 450+450-5g=205 5g=205+450 5g=755 5g÷5=755÷ 5 g=151|||||1. 4 -xk=108 9 9 k=108x- 4 k=27x9 k=248 2. 2 -xh-15=25 3 2 - x h=25+15 3 2 - x h=40 3 3 h=- x40 2 h=20x3 h=60|||||1. 108 X 9/4=k k=243 2. 2h/3=40 2h=120 h=60 3. 450-205=5g 245=5g g=49 4. 4/9=n/144-8/144 4/9+8/144=n/144 1/2=n/144 n=72 5. 48-24=2p 24=2p p=12 第6題係咪打錯題目ar??|||||1. k=108X9/4 k=243 2. 2/3 x h=25+15 2/3 x h=40 h=40x3/2 h=60 3.450-5g=205 450-205=5g 245=5g g=49 4.n/144=4/9+1/18 n/144=1/2 n=72 5.48-2p=24 2p=48-24 p=12 6.你打錯野 2007-04-23 22:38:32 補充: w / 5 = 2.3 - 5.2w = -2.9 x 5 w = -14.5 2007-04-25 21:21:40 補充: 第6條個度一定要將5.2調左先.... 2007-04-25 21:24:38 補充: 因為先乘除後加減...所以:5.2 (w/5)=2.3因此要做左括號以外先
arrow
arrow

    hzb53jl55v 發表在 痞客邦 留言(0) 人氣()