Question

A jar of mayonnaise is shaped like a cylinder. The radius of the jar is 1.5 in. and its height is 7 in. The mayonnaise is on sale for $0.08 per in^3. What is the cost of the jar of mayonnaise, rounded to the nearest cent?

Answer 1

Radius of the jar = 1.5 inches
Height of the cylinder = 7 inches
Then
Volume of the cylinder = pie * (Radius)^2 * Height
= 3.14 * (1.5)^2 * 7
= 49.455 cubic inches
Value of 1 inch cube of mayonnaise = 0.08 dollars
Then
Value of 49.455 inch cube of mayonnaise = 0.08 * 49.455
= 3.956 dollars
= 3.96 dollars.