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ss7ja [257]
3 years ago
8

The pressure p(in lbs/in^2) that a 160 pound persons shoe exerts on the ground when walking varies inversely with the area A(in

in^2) of the sole of the shoe when the shoes have a sole area of 40 in^2 The pressure is 4 lbs/in^2 find equation that relates these variables
A=
Mathematics
1 answer:
Ugo [173]3 years ago
6 0

Answer:

A = \dfrac{40}{P}

Step-by-step explanation:

Pressure p(in lbs/in^2)  varies inversely with the area A(in$ in^2) of the sole of the shoe.

This is written as:

P \propto \frac{1}{A}\\ $Introducing the constant of variation$\\P = \dfrac{k}{A}

When:

When: A= 40 in^2, P =4 lbs/in^2\\$Substituting into the equation\\P = \dfrac{k}{A}\\4 = \dfrac{k}{40}\\$Cross multiply\\k=4*40\\k=160\\Therefore, the equation that connect these variables is given as:\\P = \dfrac{40}{A}\\$In terms of P\\AP=40\\\\A = \dfrac{40}{P}

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