Suppose y varies jointly as × and z. What is y when × = 2 and z = 3, if y = 20 when × = 4 and z = 3?
Mathematics
lilleeashlynn
Question
Suppose y varies jointly as × and z. What is y when × = 2 and z = 3, if y = 20 when × = 4 and z = 3?
1 Answer

1. User Answers RealGiveaway
Answer:
y = kxz
Stepbystep explanation:
(Find K)
20 = k(4) (3)
20/12 = k
k = 5/3
(Find Y)
y = (5/3)(2)(3)
y = 10
I hope this helps.