To find the mean <span>Just add up all the numbers, then divide by how many numbers there are.
7 sets of numbers
the sum of all numbers is 105
105 </span>÷ 7 = 15
so the mean of the years is 15
Answer: 23%
Step-by-step explanation:
From the question, we are informed that a new pair of shoes cost $78 and that they are on sale for $60.06.
The percent of change will be calculated as:
Change/ Cost price × 100
= [(78 - 60.06) / 78] × 100
= (17.94 / 78) × 100
= 0.23 × 100
= 23%
Answer:
5 m
Step-by-step explanation:
The volume (V) of a square based pyramid is
V = 
Ah ( A is the area of base and h the height ), thus
A × 12 = 100, that is
4A = 100 ( divide both sides by 4 )
A = 25
Hence s² = 25 ← s is the side of square base
Take the square root of both sides
s = 
= 5
Answer:
I think it's 60%, I could be wrong
Hope I Helped! Have a nice night!
Answer:
i think it is d
Step-by-step explanation:
