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3 years ago

What is the mean of the data set? 61, 38, 40, 53

Mathematics

2 answers:

Anit [1.1K]3 years ago

8 0

Answer:

Step-by-step explanation:

You are solving for the mean of the data set. To do so, add all the numbers together, and <em>divide by the amount of numbers in the set</em>.

Note that there are 4 numbers given to you: 38, 40 , 53, 61.

First, add the 4 numbers together:

38 + 40 + 53 + 61 = 192

Next, divide 4 from the total gotten:

192/4 = 48

48 is the mean of the data set.

nydimaria [60]3 years ago

6 0

Answer:

Step-by-step explanation:

$Mean = \frac{Total \: value}{no \:of \:given \:data} \\\\=\frac{61+ 38+ 40+ 53}{4}\\\\=\frac{192}{4} \\\\= 48$

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3 years ago

1/7 times x = 1<br> 5/4 times x=1<br> 3 1/2 times x=1<br> 5/7 times x=1

antiseptic1488 [7]

( i )

$= > \frac{1}{7} \times x = 1 \\ \\ \\ \\ = > \frac{1}{7} \times 7 \times x = 1 \times 7 \\ \\ \\ \\ = > x = 7$

( ii ) :

$= > \frac{5}{4} \times x = 1 \\ \\ \\ \\ = > \frac{5}{4} \times \frac{4}{5} \times x = 1 \times \frac{4}{5} \\ \\ \\ \\ = > x = \frac{4}{5}$

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$= > 3\frac{1}{2} \times x = 1 \\ \\ \\ \\ = > \frac{7}{2} \times x = 1 \\ \\ \\ \\ = > \frac{7}{2} \times \frac{2}{7} \times x = 1 \times \frac{2}{7} \\ \\ \\ \\ = > x = \frac{2}{7}$

( iv ) :

$\frac{5}{7} \times x = 1 \\ \\ \\ \\ = > \frac{5}{7} \times \frac{7}{5} \times x = 1 \times \frac{7}{5} \\ \\ \\ \\ = > x = \frac{7}{5}$

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3 years ago

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3 years ago

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3 years ago

What is the smallest integer that can be divided by the product of a prime number and 7 while yielding a prime number?

11111nata11111 [884]

Answer:

(D). 28

Step-by-step explanation:

We have been given that the smallest integer that can be divided by the product of a prime number and 7 while yielding a prime number.

We know that smallest prime is 2. The product of 2 and 7 is 14.

Let us divide our given numbers by 14.

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$\frac{7}{14}=\frac{1}{2}$

The quotient is not a integer or prime number.

(B). 14

$\frac{14}{14}=1$

We know that 1 is not a prime number.

(C) 24.

$\frac{24}{14}=\frac{12}{7}$

The quotient is not a integer or prime number.

(D). 28

$\frac{28}{14}=2$

Since 2 is a prime number, therefore, 28 is the smallest integer that can be divided by the product of a prime number and 7 and yield a prime number.

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3 years ago