What is the percentage increase in size when ordering a 14 inch rather than a 12 inch pizza?
(14^2-12^2)/12^2 = 52/144 = 13/36, converted to percent.
I squared the diameters because it is the area, not the diamter, that determimes the "size" (amount of food).
How is 13/36 a percent?
(13/36) x 100 = 36% bigger
To calculate the percentage increase in size when ordering a 14 inch rather than a 12 inch pizza, you need to compare the difference in sizes and express it as a percentage.
Step 1: Find the difference in sizes
To find the difference, subtract the size of the smaller pizza from the size of the larger pizza:
14 inches - 12 inches = 2 inches
Step 2: Calculate the percentage increase
To calculate the percentage increase, divide the difference in sizes by the original size (12 inches) and then multiply by 100:
(2 inches รท 12 inches) x 100 = 16.67%
So, when ordering a 14 inch pizza rather than a 12 inch pizza, there is a percentage increase of approximately 16.67% in size.