y varies directly as (x-2) and inversely as z. When x=8 and z=5, y=2. Find y
when x=z=10
SS1 Maths variation
2010-05-23 6:51 pm
回答 (1)
2010-05-23 6:55 pm
✔ 最佳答案
Let y = k(x - 2)/zPut x = 8, z = 5, y = 2
2 = k(8 - 2)/5
k = 5/3
So, y = 5(x - 2) / 3z
Put x = z = 10
y = 5(10 - 2) / 3(10)
= 4/3
參考: Prof. Physics
收錄日期: 2021-04-19 22:16:37
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