starx14
Answered

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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 in3.

What is the cost of the jar of mayonnaise, rounded to the nearest cent?
Use 3.14 to approximate pi.

Sagot :

Greenleafable
The answer is $3.96. The volume of the cylinder is: V = π * r^2 * h. We know that: r = 1.5 in, h = 7 in, π = 3.14. V = 3.14 * 1.5^2 * 7 = 49.455 in^3. Since the price of the mayonnaise is $0.08 per in^3, then 49.455 in^3 will cost x: $0.08 : 1 in^3 = x : 49.455 in^3. x = 49.455 in^3 * $0.08 : 1 in^3. x = $3.96.
isaiah6665

Answer:

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.

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