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ch4aika [34]
3 years ago
15

Write 25 2 as a mixed number. Give your answer in its simplest form.

Mathematics
2 answers:
masha68 [24]3 years ago
8 0

Answer:

12 and 1/2<u>
</u>

Step-by-step explanation:

makvit [3.9K]3 years ago
4 0

Answer:

12\frac{1}{2}

Step-by-step explanation:

25/2 =  12 1/2

Numerator. This is the number above the fraction line. For 25/2, the numerator is 25.

Denominator. This is the number below the fraction line. For 25/2, the denominator is 2.

Improper fraction. This is a fraction where the numerator is greater than the denominator.

Mixed number. This is a way of expressing an improper fraction by simplifying it to whole units and a smaller overall fraction. It's an integer (whole number) and a proper fraction.

Step 1: Find the whole number

We first want to find the whole number, and to do this we divide the numerator by the denominator. Since we are only interested in whole numbers, we ignore any numbers to the right of the decimal point.

25/2= 12.5 = 12

Now that we have our whole number for the mixed fraction, we need to find our new numerator for the fraction part of the mixed number.

Step 2: Get the new numerator

To work this out we'll use the whole number we calculated in step one (12) and multiply it by the original denominator (2). The result of that multiplication is then subtracted from the original numerator:

25 - (2 x 12) = 1

Step 3: Our mixed fraction

We've now simplified 25/2 to a mixed number. To see it, we just need to put the whole number together with our new numerator and original denominator:

12 1/2

In this case, our fraction (1/2) can be simplified down further. In order to do that, we need to calculate the GCF (greatest common factor) of those two numbers. You can use our handy GCF calculator to work this out yourself if you want to. We already did that, and the GCF of 1 and 2 is 1.

We can now divide both the new numerator and the denominator by 1 to simplify this fraction down to its lowest terms.

1/1 = 1

2/1 = 2

When we put that together, we can see that our complete answer is:

12 1/2

[RevyBreeze]

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The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 73 minutes and a standard devi
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Answer:

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(b) 0.7910

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(d) 0.6464

Step-by-step explanation:

Let <em>X</em> = amount of time that people spend at Grover Hot Springs.

The random variable <em>X</em> is normally distributed with a mean of 73 minutes and a standard deviation of 16 minutes.

(a)

The distribution of the random variable <em>X</em> is:

X\sim N(\mu = 73, \sigma = 16)

(b)

Compute the probability that a randomly selected person at the hot springs stays longer than 60 minutes as follows:

P(X>60)=P(\frac{X-\mu}{\sigma}>\frac{60-73}{16})\\=P(Z>-0.8125)\\=P(Z

*Use a <em>z</em>-table for the probability.

Thus, the probability that a randomly selected person at the hot springs stays longer than an hour is 0.7910.

(c)

Compute the probability that a randomly selected person at the hot springs stays less than 45 minutes as follows:

P(X

*Use a <em>z</em>-table for the probability.

Thus, the probability that a randomly selected person at the hot springs stays less than 45 minutes is 0.0401.

(d)

Compute the probability that a randomly person spends between 60 and 90 minutes at the hot springs as follows:

P(60

*Use a <em>z</em>-table for the probability.

Thus, the probability that a randomly person spends between 60 and 90 minutes at the hot springs is 0.6464

6 0
3 years ago
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