15/40 x 100 = 37.5
equation for percent decrease is diiference/original x 100.
Answer:
19.2
Step-by-step explanation:
You get the mean of a set of numbers by adding them and dividing the sum by how many numbers there are. In this case, you don't know what the individual 8 numbers are, but you can find out what they add up to.
Mean = (sum) / 8
17 = (sum) / 8
17 x 8 = sum
136 = sum
Now take out the numbers 9, 11, 20, which reduces the sum by 40. There are 5 numbers left and they add up to 136 - 40 = 96.
The new mean is 96 / 5 = 19.2
Answer:The Perimeter of Green Island is 1.6 km.
D. Aidan’s
The larger the sample size (number of people asked), the more accurate the results generally are, due to the law of large numbers.
Answer:
you want us to do all that
Step-by-step explanation:
