Answer:
Step-by-step explanation:
10^7 = 10,000,000
The LCM is the smallest common multiple. To find this, list the multiples of each number
52: 52, 104, 156....
13: 13, 26, 39, 52.....
the smallest number that is a mutiple of both is 52.
so, the LCM of 13 and 52 is 52.
Hope this helps!
Mean = Sigma (summation) of x ÷ n
(Making Sigma x The subject of the formula)
Summation of x = Mean × n
= 8 × 15
The summation of all the scores= 120
The change of x is 20-5 = 15
New summation = 120 - 15 = 105
Using formula:
105 ÷ 15 = 7
ų = 7
The 7 friends would get 1.4m of ribbon.
You would have to do 2.4 divided by 12 to get 0.2. Then multiply 0.2 by 7 to get 1.4.