Question

The height of a stack of 12 pennies is 18.24 millimeters. What is the thickness of each penny? Please explain how you got your answer :)

Answer 1

Answer: 1.52 millimeters
Explanation: 18.25 divide by 12 = 1.52.

Answer 2

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Answer:

1.52 mm

Explanation:

Let p represent the thickness of one penny. Then a stack of 12 pennies will have a thickness of 12p.

12p = 18.24 mm

p = 18.24 mm/12 = 1.52 mm . . . . divide by the coefficient of p

The thickness of each penny is 1.52 mm.