Answer:
E. 50%
Step-by-step explanation:
The shaded regions in the bottom can be 'moved' to the top since those pieces are the same size and if you do that, they cover the entire top half
Answer:
New avaerage if 2 students (15 year old) left = 13
Step-by-step explanation:
Given:
Average age of 20 students = 13.2
Find:
New avaerage if 2 students (15 year old) left
Computtaion:
Sum of all 20 student's age = 20 x 13.2
Sum of all 20 student's age = 264
Sum of current 18 student's age = 264 - 15 - 15
Sum of current 18 student's age = 234
New avaerage if 2 students (15 year old) left = 234 / 18
New avaerage if 2 students (15 year old) left = 13
Answer:
y = 
Step-by-step explanation:
Given
2(3y + 5) = 3(5y + 3) ← distribute parenthesis on both sides
6y + 10 = 15y + 9 ( subtract 6y from both sides )
10 = 9y + 9 ( subtract 9 from both sides )
1 = 9y ( divide both sides by 9 )
= y
10 by 60 Would create a rectangle, so would 20 by 50, so would 30 by 40. These would all create rectangles, but the most like a rectangle would be 10 by 60, or 20 by 50.
10x2=20 60x2=120 120+20=140
20x2=40 50x2=100 100+40=140
