Answer:
X 90 z 90 y 90
Step-by-step explanation:
5
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y = 57
y α x
y = kx ; k = Constant of proportionality
81 = k* 54
k = 81/54
k = 1.5
Value of y when x = 38
y = kx
y = 1.5 * 38
Hence, y = 57 when x = 38
Answer: 5.2
3*7 = 21
21/5 = 4.2
