the value of y is 80 when x = 14, and z = 7, Suppose y varies jointly w/x and z , what is the value of x then if y = 24 and z = 2? what is the step by step of equation and constant using this formula of y/xz = kxz/xz
need q na plsss
need q na plsss
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Step-by-step explanation:
Problem:
Suppose y varies jointly as x and z, and y = 28 when x = 8 and z = 7. Find y when x = 14 and z = 9.
Answer:
y = 9/2 or 4 1/2
Step-by-step explanation:
y varies jointly as x and z
y = kxz
Find k:
Given:
y = 28
x = 8
z = 7
k = ?
Solve for k:
y = kxz
28 = k (8)(7)
28 = 56k
Find y:
Given:
x = 1
z = 9
k = 1/2
y = ?
Solve for y
y = kxz
y = (1/2)(1)(9)
y = 9/2 or 4 1/2