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aev [14]
3 years ago
7

8w - 16 Helpppppppppppp

Mathematics
1 answer:
Sever21 [200]3 years ago
4 0
-2? it’s been awhile sorry if it’s wrong
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A company makes wax candles in the shape of a solid sphere. Suppose each candle has a diameter of 15 cm. If
jekas [21]

We have been given that a company makes wax candles in the shape of a solid sphere. Each candle has a diameter of 15 cm. We are asked to find the number of candles that company can make from 70,650 cubic cm of wax.

To solve our given problem, we will divide total volume of wax by volume of one candle.

Volume of each candle will be equal to volume of sphere.

V=\frac{4}{3}\pi r^3, where r represents radius of sphere.

We know that radius is half the diameter, so radius of each candle will be \frac{15}{2}=7.5 cm.

\text{Volume of one candle}=\frac{4}{3}\cdot 3.14\cdot (7.5\text{ cm})^3

\text{Volume of one candle}=\frac{4}{3}\cdot 3.14\cdot 421.875\text{ cm}^3

\text{Volume of one candle}=1766.25\text{ cm}^3

Now we will divide 70,650 cubic cm of wax by volume of one candle.

\text{Number of candles}=\frac{70,650\text{ cm}^3}{1766.25\text{ cm}^3}

\text{Number of candles}=\frac{70,650}{1766.25}

\text{Number of candles}=40

Therefore, 40 candles can be made from 70,650 cubic cm of wax.

8 0
3 years ago
The ratio of students packing a lunch to those buying a lunch is 2:9. The number of students buying lunch is how many times the
Marta_Voda [28]
 4.5 times the number of students packing a lunch
3 0
3 years ago
Read 2 more answers
What is the area of this irregular shape and how do I work it out?
Brilliant_brown [7]

Answer:

17cm²

Step-by-step explanation:

i hope it's helpful

7 0
2 years ago
How do you solve 9x + 18 +3x =1
Anni [7]
9x+18+3=1
11x+18=1
11x=-17
17/11 I don't have a calculator
5 0
3 years ago
Read 2 more answers
11 of 16
love history [14]

Answer:

Step-by-step explanation:

This is a geometric sequence; we know that because of the words "common ratio."  The general formula for a geometric sequence is

a(n) = a(1)*r^(n - 1), where r is the common ratio.

Here, a(1) = 1, r = 1/3, and so

a(1) = 1 (given)

a(2) = 1/3 (this is a(1) multiplied by 1/3)

a(3) = 1/9 (this is a(2) multiplied by 1/3)

a(4) = 1/27

a(5) = 1/81

8 0
3 years ago
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