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ruslelena [56]
3 years ago
9

I have the same value as a group of 2 dimes and 1 nickel. what coin am I?

Mathematics
2 answers:
Marina86 [1]3 years ago
6 0

Answer:

You are a  quarter

Step-by-step explanation:

Dimes are €10 10x2=20 and nickels are€5 20 +5=25 so €25


AleksandrR [38]3 years ago
3 0

The answer would simply be a quarter. A dime is equal to 10 cents, two dimes would be 20 cents. A nickel is 5 cents. When you add them together, it equals to 25 cents, which is equivalent to a quarter.

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50 students live in a dormitory. The parking lot has the capacity for 30 cars. Each student has a car with probability 12 , inde
Maurinko [17]

Answer:

P(X is greater than 30) = 0.06

Step-by-step explanation:

Given that:

Sample proportion (p) = 0.5

Sample size = 30

The Binomial can be approximated to normal with:

\mu = np = 50 \times 0.5 \\ \\ \mu= 25

\sigma = \sqrt{np(1-p) } \\ \\  \sigma = \sqrt{50 \times (0.5)(1-0.5) } \\ \\ \sigma = 3.536

To find:

P(X> 30)

So far we are approximating a discrete Binomial distribution using the continuous normal distribution. 30 lies between 29.5 and 30.5

Normal distribution:

x = 30.5, \mu = 25, \sigma = 3.536

Using the z test statistics;

z = \dfrac{x - \mu}{\sigma}

z = \dfrac{30.5 - 25}{3.536}

z = \dfrac{5.5}{3.536}

z = 1.555

The p-value for P(X>30) = P(Z > 1.555)

The p-value for P(X>30) = 1 - P (Z< 1.555)

From the z tables;

P(X> 30) = 1 - 0.9400

Thus;

P(X is greater than 30) = 0.06

7 0
3 years ago
Square EFGH underwent several transformations.
MariettaO [177]

Answer:

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Step-by-step explanation:

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