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A company makes wax candles in the shape of a solid sphere. Suppose each candle has a diameter of 15cm. If the company has a total of 70,650cm3 of wax, how many candles can be made?Use 3.14 for π, and do not round your answer.

Question

A company makes wax candles in the shape of a solid sphere. Suppose each candle has a diameter of 15cm. If the company has a total of 70,650cm3 of wax, how many candles can be made?Use 3.14 for π, and do not round your answer.

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Solution 1

To solve this problem, we first need to find the volume of a single candle. The formula for the volume of a sphere is V = 4/3 * π * r^3, where r is the radius of the sphere.

Step 1: Find the radius of the sphere. The diameter is 15 cm, so the radius is half of that, which is 7.5 cm.

Step 2: Substitute the radius into the volume formula: V = 4/3 * π * (7.5 cm)^3 = 4/3 * 3.14 * (7.5 cm)^3 = 1766.25 cm^3. This is the volume of a single candle.

Step 3: Divide the total volume of wax by the volume of a single candle to find out how many candles can be made: 70,650 cm^3 / 1766.25 cm^3 = 40 candles.

So, the company can make 40 candles with the given amount of wax.

This problem has been solved

Solution 2

To solve this problem, we first need to find the volume of a single candle. The formula for the volume of a sphere is V = 4/3 * π * r^3, where r is the radius of the sphere.

Step 1: Find the radius of the sphere. The diameter is given as 15 cm, so the radius is half of that, which is 7.5 cm.

Step 2: Substitute the radius into the volume formula: V = 4/3 * π * (7.5 cm)^3 = 4/3 * 3.14 * (7.5 cm)^3 = 1766.25 cm^3.

Step 3: Now, we know the volume of a single candle and the total volume of wax available. To find out how many candles can be made, we divide the total volume of wax by the volume of a single candle: 70,650 cm^3 / 1766.25 cm^3 = 40 candles.

So, the company can make 40 candles with the available wax.

This problem has been solved

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