Answer:
2.5
Explanation:
Let,
Constant of proportionality = x
0.5 = 0.2 × x
0.5/0.2 = x
5/2 = x
2.5 = x
Hence,
Constant of proportionality is 2.5
Proportional relationship is determined by the equation:
We have:
Substitute the values into above equation and solve for k:
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