The normal healing of wounds can be modeled by an exponential function. If A0 represents the original area of the wound, and if A equals the area of the wound, the the function A(n)=A0e-0.35n describes the area of a wound after n days following an injury when no infection is present to retard the healing. Suppose that a wound initially had an area of 100 sqaure millimeters. a) If healing is taking place, after how many days will the wound be one-half of its original size? b) How long before the wound is 10% of its original size?
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
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Units and Measurements
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The normal healing of wounds can be modeled by an exponential function. If A0 represents the original area of the wound, and if A equals the area of the wound, the the function A(n)=A0e-0.35n describes the area of a wound after n days following an injury when no infection is present to retard the healing. Suppose that a wound initially had an area of 100 sqaure millimeters.
a) If healing is taking place, after how many days will the wound be one-half of its original size?
b) How long before the wound is 10% of its original size?
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