Problema Solution
Ron wrapped a box he had with wrapping paper for his friend's birthday. The wrapping paper was three cents per square inch. How much will the paper cost for a box with these dimensions: height = 11 inches, width = 5 inches, length = 9inches? Assume no overlap.
Answer provided by our tutors
first we need to find the area A of a box with dimensions:
height = 11 in
width = 5 in
length = 9 in
A = 2(length*width + width*height + height*length)
A = 2(9*5 + 5*11 + 11*9)
A = 398 in^2
The wrapping paper was 3 cents per square inch thus the cost of 398 in^2 of paper is:
3*398 = 1194 cents = $11.94