When Sally went bowling, her scores were 108, 72, and 95. If she bowls a 4th game, what will her score need to be to give her an average of 91?
2 answers:
Answer:
The answer is 89.
Step-by-step explanation:
In order to determine the score that she needs, we have to know about the mean . The <em>mean </em>is the average that we use frequently, where we add up all the numbers and then divide by the amount of numbers.
We have to make a equation where let be x the fourth score . Then:
First score=108
Second score=72
Third score=95
Fourth score=x
Average (mean)=91
Amount of numbers=4
Finally, the score that she will need is 89.
She needs a score of 89 for it to be an average of 91.00
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