The mean number of emails adele received during a week was 51. The numbers received for the six days were 39, 57, 70, 45, 71, 32.Find how many emails she received on the seventh day.

Given:

The mean number of emails adele received during a week was 51.

The numbers received for the six days were 39, 57, 70, 45, 71, 32.

To find:

The number of emails received on the seventh day.

Solution:

Let x be the number of emails received on the seventh day.

We know that,

Multiply both sides by 7.

Subtract 314 from both sides.

Therefore, she received 43 emails on the seventh day.

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step-by-step explanation:

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