Find the constant of variation and the equation of variation given that y varies jointly as x and z. "y = 56 when x= 7 and z= 8"
a. y = XZ
b. y = 12xz
c. y = 5xz
d. y = kx = z
a. y = XZ
b. y = 12xz
c. y = 5xz
d. y = kx = z
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Answer:
a. y = XZ
Step-by-step explanation: