Question

debbies math certificate is 14 centimeters tall and 28 centimeters wide. debbie wants to put the certificate in a fancy frame that costs $1.00 per centimeter. how much will it cost to frame debbies math certificate? $

Explanation:

Step1: Calculate the perimeter of the certificate

The certificate is a rectangle. The formula for the perimeter of a rectangle is \(P = 2\times(l + w)\), where \(l\) is the length and \(w\) is the width. Here, \(l = 28\) cm and \(w=14\) cm.

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Step2: Calculate the cost of the frame

The frame costs \(\$1.00\) per centimeter. If the perimeter \(P = 84\) cm, then the cost \(C\) is \(C=P\times1\).
Since \(P = 84\) cm, \(C=84\times1=\$84\)

Answer:

\(84\)