The middle person in a row is the 18th, how many persons are in the row?

1 answer:

5 0

Answer:

Step-by-step explanation:

IF the middle is 18 then there aer 17 infront and 17 in back added together equals 35.

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Sergio039 [100]

Answer:

The answer after division is: $2\frac{2}{5}$

Step-by-step explanation:

The given question involves two mixed fractions that are being divided.

$7\frac{1}{2}\div 3\frac{1}{8}$

First of all, we will convert the fractions into proper fractions

$\frac{15}{2}\div \frac{25}{8}$

When the division is performed, the second fraction is reversed

So dividing gives us:

$\frac{15}{2} * \frac{8}{25}\\= \frac{3*4}{5}\\=\frac{12}{5} = 2\frac{2}{5}$

Hence,

The answer after division is: $2\frac{2}{5}$

3 0

2 years ago

Ket [755]

410 - 25 = 386

385 ÷ 55 = 7 passengers

5 0

3 years ago

Zanzabum

Answer:

a) (1215, 1297)

b) (1174, 1338)

c) (1133, 1379)

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 1256

Standard Deviation, σ = 41

Empirical Rule:

Also known as 68-95-99.7 rule.
It states that almost all the data lies within three standard deviation for a normal data.
About 68% of data lies within 1 standard deviation of mean.
About 95% of data lies within two standard deviation of mean.
About 99.7% of data lies within 3 standard deviation of mean.

a) range of years centered about the mean in which about 68% of the data lies

$\mu \pm 1(\sigma)\\=1256 \pm 41\\=(1215, 1297)$