Dominique spent $31.41 on 9 bags of Takis. How much did each bag cost?
2 answers:
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Answer: The average was 9 years old find the average age of both groups is 10 years old.
Step-by-step explanation:
Formula foe average :
Given : The first group of students consists of 10 and their average age was 13 years old.
i.e. (1)
The next group consisted of 30 students and their average was 9 years old.
i.e. (2)
Then from (1) and (2) , the sum of both groups (first group and next group )students = 130+270 =400
Combined students of both groups (first and next group )= 10+30=40
Now , the average of both groups =
Hence, the average was 9 years old find the average age of both groups is 10 years old.
Company B offers the lowest price.
Company A:
32.50/2.5 =
13
Company B:
35.50/2.75 =
12.90
Company A:
32.50/2.5 =
13
Company B:
35.50/2.75 =
12.90