d老師有冇事呀?一次過比咁多數!
200y + 56 X 2 = 368
2006-12-22 09:45:37 · 8 個解答 · 發問者 ? 1 in 科學 ➔ 數學
200y + 56x2 = 368
200y + 112=368
200y = 368-112
200y = 256
y = 256/200
y = 1.28
2006-12-22 09:50:31 · answer #1 · answered by vivian 6 · 0⤊ 0⤋
200y + 56 X 2 = 368
200y + 112 = 368
200y = 256
y = 1.28
2006-12-25 16:46:48 補充：
200y + 56 X 2 = 368 200y + 112 = 368200y = 256y = 1.28
2006-12-25 11:46:35 · answer #2 · answered by TSO9 3 · 0⤊ 0⤋
見到上面的100個答案，我想提醒你們，其實只要驗算一下，就知道了。
200y+56x2=368
200y+112=368
200y=256
y=256/200
y=1 56/200
y=1 7/50
y=1.28
驗算：
200x1.28+56x2
=256+112
=368
2006-12-24 12:02:09 補充：
不是y=1 7/50，是y=1 7/25
2006-12-24 06:59:59 · answer #3 · answered by nicholas 7 · 0⤊ 0⤋
200y + 56 X 2 = 368
200y + 112=368
200y=368 -112
200y=256
y=2.56
2006-12-22 15:19:51 補充：
Sorry200y 56 X 2 = 368200y 112=368200y=368 -112200y=256y=1.28
2006-12-22 10:19:04 · answer #4 · answered by ABC 7 · 0⤊ 0⤋
200y + 56 X 2 = 368
200y + 112 = 368
200y = 256
y = 1.28
2006-12-22 10:08:21 · answer #5 · answered by Frankie 4 · 0⤊ 0⤋
200y + 56 X 2 = 368
200y+112=368
200y+112-112=368-112
200y=256
200y/200=256/200
y=1又25分之7
2006-12-22 09:52:44 · answer #6 · answered by paksze 3 · 0⤊ 0⤋
200y + 56x2 = 368
200y= 256
y=1.28
2006-12-22 09:50:59 · answer #7 · answered by ? 3 · 0⤊ 0⤋
200y+56x2=368
200y+112=368
200y=256
y=256/200
y=32/25
2006-12-22 09:49:16 · answer #8 · answered by ? 3 · 0⤊ 0⤋