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3 years ago

The average of the first five multiple of 7 is

Mathematics

1 answer:

Black_prince [1.1K]3 years ago

7 0

Answer:

b. 21

Step-by-step explanation:

The first five mutiples of 7 are: 7, 14, 21, 28, 35. You can get these by multiplying 7 to any integer.

7x1 = 7
7x2 = 14
7x3 = 21
7x4 = 28
7x5 = 35

In order to get the average of these numbers, you have to add them and divide the sum to the total number of multiples.

Let's add first.

7+14+21+28+35 = 105

Let's divided 105 by 5, which is the number of the multiples of 7.

105÷5 = 21

The answer is 21.

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