Answer:
Percentage of free time Gary spends on playing video games and using internet = 54.29%
Step-by-step explanation:
Given:
Gary spends 10 hours per week on the internet.
Gary spends 9 hours per week on video games.
Gary has 5 hours free time per day.
To find the percentage of free time Gary is using to play video game and use the internet.
Solution:
Total number of hours of free time Gary has per week = 
<em>[As there are 7 days in a week so we multiply by 7]</em>
Total number of hours of free time Gary spends on playing video games and using internet per week =
Percentage of free time Gary spends on playing video games and using internet per week can be calculated as :
⇒
⇒ 
⇒ 54.29% (Answer)
Answer:
The volume of the pyramid is 
Step-by-step explanation:
we know that
The volume of the triangular pyramid is equal to

where
B is the area of the triangular base
H is the height of the pyramid
step 1
Find the area of the base B

we have


substitute

step 2
Find the volume
we have


substitute


2 KZ = WZ
2(y + 1) = 3y
2y + 2 = 3y
y = 2
so
KZ = 2 + 1 = 3
WZ = 3(2) = 6
WK = WZ + ZK
WK = 6 + 3
WK = 9
answer
<span>C) 9</span>