About 97,221 adult penguins live on Brash Island. Of those penguins,
1 answer:
Answer:
94, 956
Step-by-step explanation:
Given that of the 97221 adult penguins in the island, 97.67% of them being Adélie penguins then it means to get the actual number of Adélie penguins will be rhe product of percentage and the total population.
Therefore, Adélie penguins will be
Since Adélie penguins can't be in decimal, this is rounded off to be 94, 956
Therefore, the number is 94, 956
You might be interested in
Answer:
Sandra need to score at least <u>56%</u> in her fifth test so that her average is 80%.
Step-by-step explanation:
Given:
First 4 test scores = 87%, 92%, 76%,89%
Average targeted = 80%
We need to find the minimum score she needs to make on fifth test to achieve average of at least 80%.
Solution:
Let the minimum score she needs to make in fifth test be 'x'.
Total number of test = 5
Now we know that;
Average is equal to sum of all the scores in the test divided by number of test.
framing in equation form we get;
Multiplying both side by 5 we get;
Subtracting both side by 344 we get;
Hence Sandra need to score at least <u>56%</u> in her fifth test so that her average is 80%.