d老師有冇事呀?一次過比咁多數!
z + z + z = 900
2006-12-22 09:48:58 · 11 個解答 · 發問者 ? 1 in 科學 ➔ 數學
z + z + z = 900
2z+z=900
3z=900
z=300
2006-12-22 10:12:20 · answer #1 · answered by ABC 7 · 0⤊ 0⤋
z=300 300+300+300=900 將900÷3就得所以z=300
2006-12-26 12:41:53 · answer #2 · answered by rose199611 2 · 0⤊ 0⤋
z + z + z = 900
3z = 900
z=300
2006-12-25 11:41:16 · answer #3 · answered by TSO9 3 · 0⤊ 0⤋
似乎好無聊……
z+z+z=900
3z=900
z=300
一題可以一秒內想到答案的問題。
驗算：
300+300+300
=300x3
=900
2006-12-24 07:06:45 · answer #4 · answered by nicholas 7 · 0⤊ 0⤋
z + z + z = 900
3z=900
z=300
2006-12-22 10:13:20 · answer #5 · answered by 好奇的人 2 · 0⤊ 0⤋
z+z+z=900
3z=900
3z/3=900/3
z=300
2006-12-22 10:07:39 · answer #6 · answered by paksze 3 · 0⤊ 0⤋
z+z+z=900
3z=900
3z/3=900/3
z=300
***3z/3同300/3(自己用''份''線黎做,因為冇人會用''/'')***
2006-12-22 09:54:46 · answer #7 · answered by ka man 1 · 0⤊ 0⤋
z + z + z = 900
3Z = 900
Z = 300
2006-12-22 09:54:34 · answer #8 · answered by EMILY 2 · 0⤊ 0⤋
z + z + z = 900
3z = 900
z = 900/3
z=300
2006-12-22 09:52:06 · answer #9 · answered by Frankie 4 · 0⤊ 0⤋
乜 Z 唔係 = 300?
2006-12-22 09:51:35 · answer #10 · answered by Chan 3 · 0⤊ 0⤋