The equation connecting L, m, A is L = [tex]\frac{1.8m}{A}[/tex]
What is a Variation?
Variation is a mathematical relationship that shows how a certain variable behaves when other variables depending on it increase or decrease.
The types of variation are: Direct, indirect, joint and partial.
Analysis:
L ∝ [tex]\frac{m}{A}[/tex]
introducing a constant K to replace the proportionality sign,
L = [tex]\frac{Km}{A}[/tex]
when L = 18, m = 0.4, A = 0.4
18 = [tex]\frac{K(4)}{0.4}[/tex]
4K = 0.4 x 18
k = 1.8
Therefore the equation connecting the three variables is,
L = [tex]\frac{1.8m}{A}[/tex]
Learn more about variation: brainly.com/question/6499629
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