US coins are roughly in the shape of cylinders. Therefore, the formula for the volume of a cylinder can be used to compare the volumes of coins. How does the combined volume of pennies compare to the volume of 1 presidential dollar?
The volume of 3 pennies is choose your answer... than the volume
of 1 presidential dollar by approximately type your answer... ${mm}^{3}$ .
(Express your answer as a decimal to the nearest tenth.)

Answer

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Answer

Compare combined volume of 3 pennies to 1 presidential dollar: $\frac{3 V_{p}}{V_{d}}$ and find the difference in volumes

Steps

Step 1 ：Find volume of 1 penny: $V_{p} = π r_{p}^{2} h_{p}$

Step 2 ：Find volume of 1 presidential dollar: $V_{d} = π r_{d}^{2} h_{d}$

Step 3 ：Compare combined volume of 3 pennies to 1 presidential dollar: $\frac{3 V_{p}}{V_{d}}$ and find the difference in volumes