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petertester7up
09.12.2020 •
Mathematics
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.
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Ответ:
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.
Ответ:
Step-by-step explanation:
They need to add up to 1 so 5-2=3 (3 will be your numerator) you need denominator won't change.
now we need to put it in a ratio.