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Afina-wow [57]
3 years ago
5

The fastest pizza box folder can assemble 2 pizza boxes in 5 seconds. At this rate, how long would it take to assemble 20 pizza

boxes?
Mathematics
2 answers:
Novay_Z [31]3 years ago
6 0

Answer:

50 seconds

Step-by-step explanation:

2 boxes in 5 seconds

20÷2=10

10×5=50

50 seconds = 20 pizza boxes

leva [86]3 years ago
4 0

Answer:

50

Step-by-step explanation:

2=5secs

20=?

to make 20 from 2 you do =2×10

so,

5×10=50seconds is the time he would take to assemble 20pizza boxes

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Using the definition of expected value, it is found that Ayo can be expected to make a profit of £55.8.

The <em>expected value</em> is given by the <u>sum of each outcome multiplied by it's respective probability.</u>

In this problem:

  • The player wins $6, that is, Ayo loses £6, if he rolls a 6 and spins a 1, hence the probability is \frac{1}{6} \times \frac{1}{12} = \frac{1}{72}.
  • The player wins $3, that is, Ayo loses £3, if he rolls a 3 on at least one of the spinner or the dice, hence, considering three cases(both and either the spinner of the dice), the probability is \frac{1}{6} \times \frac{1}{12} + \frac{1}{6} \times \frac{11}{12} + \frac{5}{6} \times \frac{1}{12} = \frac{1 + 11 + 5}{72} = \frac{17}{72}
  • In the other cases, Ayo wins £1.40, with 1 - \frac{18}{72} = \frac{54}{72} probability.

Hence, his expected profit for a single game is:

E(X) = -6\frac{1}{72} - 3\frac{17}{72} + 1.4\frac{54}{72} = \frac{-6 - 3(17) + 54(1.4)}{72} = 0.2583

For 216 games, the expected value is:

E = 216(0.2583) = 55.8

Ayo can be expected to make a profit of £55.8.

To learn more about expected value, you can take a look at brainly.com/question/24855677

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\text{Water level increase rate per day}=\frac{78\text{ cm}}{6\text{ days}}

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Therefore, the water level increase rate is 13 centimeters per day.

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