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Mandarinka [93]

3 years ago

9

A company makes wax candles shaped like rectangular prisms. Each candle is 5 cm long, 4 cm wide, and 15 cm tall. If the company

used 5100 cm of wax, how many candles did they make?

2 answers:

faust18 [17]3 years ago

8 0

Answer:

idk do you know this is a hard one

Step-by-step explanation:

inessss [21]3 years ago

7 0

Answer:

5100 cm of wax will make 17 candles

Step-by-step explanation:

Each candle is 5 cm long, 4 cm wide, and 15 cm tall

to know the space they cover, we divide it with their volume and since they are in rectangular prism

Volume is length x width x height

5 x 4 x 15 = 20 x 15 = 300cm

1 candle = 300cm

what number of candle is represented as x

1 candle comprises of 300cm wax

x = 5100

300x = 5100 x 1 =5100

300x= 5100

x= 5100/300 = 17

5100 cm of wax will make 17 candles

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Answer:

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Step-by-step explanation:

The missing parameters are:

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Required

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First, calculate the sample standard deviation

$\sigma_x = \frac{\sigma}{\sqrt n}$

$\sigma_x = \frac{16}{\sqrt {64}}$

$\sigma_x = \frac{16}{8}$

$\sigma_x = 2$

Next, calculate the sample mean $\bar_x$

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So:

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So, we have:

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$x = \frac{21 - 20}{2}$

$x = \frac{1}{2}$

$x = 0.50$

So, we have:

$P(x \le 21) = P(z \le 0.50)$

From the z table

$P(z \le 0.50) = 0.69146$

So:

$P(x \le 21) = 0.69146$

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