Homework Help: algebra

Posted by bobby on Saturday, March 3, 2012 at 5:22pm.

the pressure (p) that a 160-pound person's shoe exerts on the ground when walking varies inversely with area (a) of the sole of the shoe. when the shoes have a sole area of 40 sq. in., the pressure is 4 pounds per sq. in. what is the sole area of the sole when the pressure is 10 pounds per sq. in. ?

algebra - Steve, Sunday, March 4, 2012 at 5:54am
we know that p*a = k
also, 4*40 = k = 160

so, 10*a = 160
. . .

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