Mathematics
Maritato880
43

The value of y is inversely proportional to the value of x. When y=42, x=6. What is the value of y when x = 9?

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Coltman208

Because [latex]x[/latex] and [latex]y[/latex] are inversely proportional, there is some constant [latex]k[/latex] such that [latex]xy=k[/latex] Given that [latex]y=42[/latex] and [latex]x=6[/latex], we have [latex]k=6\times42=252[/latex] So when [latex]x=9[/latex], you have [latex]9y=252\implies y=\dfrac{252}9=28[/latex]

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