Richard K. answered 05/07/20
Tutor
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Stanford PhD - experienced teacher/tutor in math, physics
Z = kx so substituting z = 57 and x = 3, we get k = 19. Then for x = 8, z = 19*8 = 152
Mia J.
asked 05/07/20The variable Z is directly proportional to X. When X is 3, Z has the value 57.
Richard K. answered 05/07/20
Stanford PhD - experienced teacher/tutor in math, physics
Z = kx so substituting z = 57 and x = 3, we get k = 19. Then for x = 8, z = 19*8 = 152
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