Answer:
11.25
Step-by-step explanation:
First, add the values up.
15+9+11+7+5+11+26+6=90
Then divide the sum by the number of numbers.
90/8=11.25
Answer:
Step-by-step explanation:
Let d be the number of days.
We have been that each day Katie finds 12 more seashells on beach, so after collecting shells for d days Katie will have 12d shells.
We are also told that Katie already has 34 seashells in her collection, so total number of shells in Katie collection after d days will be: 
As Katie wants to collect over 100 seashells, so the total number of shells collected in d days will be greater than 100. We can represent this information in an inequality as:
Therefore, the inequality
can be used to find the number of days, d, it will take Katie to collect over 100 seashells.
Answer:
25.5454545
Step-by-step explanation:
