<span>To find the average we need to sum the number of people in all the concert and divide it by the number of concert.
Average = (935+1100+1100) / 3
= 3135 / 3
Average number of people in the three concerts = 1045 people</span>
Because it's decreasing, you use the formula (1-x/100)y with x the percentage decreased which is here 40, and y the number decreased which is here 90
So we get
(1-40/100) * 90
(100/100 - 40/100) * 90
60/100 * 90
5400/100
54
So 90 decreased by 40% is 54
Hope this Helps :)
Answer:
0.23 centimeters per hour
Step-by-step explanation:
