You need the percentages to answer the question
We have,
Introduce variable 
such that 
The sum 
is therefore 
So,
(sadia's age)
(father's age)
Hope this helps :)
To answer this question you must find the percentage of the children that read before bed and compare it to the adults bag read before bed’s percentage.
To do this, start by dividing the number of children that read before bed by the total number of children surveyed.
This leaves you with:
6/13= 0.4615
To find the actual percentage, multiply this result by 100.
0.4615 x 100 = 46.15
This percentage rounded is 46%
So, now you can compare the percentages. The percentage of children that read before bed is 46% and the percentage of adults that read before bed is 54%. So, the group with the greatest percentage was the adults.
I hope this helps!
Answer:
(64/5)π
Step-by-step explanation:
Area of the circle: 16π
central angle: (8/5)π
The Area of the circle corresponds to a central angle equal to 2π (the complete circle). Then the following proportion must be satisfied:
16π / x = 2π / (8/5)π
x = [16π * (8/5)π] / 2π
x = (64/5)π
The best method here is to plug in so plug in -1 (-1)+5+3(-1)=1 so the answer is A
