Triangle (3 sides) 5 9 6
Rectangle (4 sides) 6 12 8
Pentagon (5 sides) 7 15 10
Hexagon (6 sides) 8 18 12
b) 300 edges and 200 vertices
If a whale is at sea level and goes down 300 feet it would be at 1,612 feet.
Answer:
Lowest grade is 70.
Step-by-step explanation:
To have an average of 80 the total score is 4 * 80 = 320.
So the score for the next test must be 320 - (85 + 74 + 91)
= 70.
Yes she is correct because 1/3 is only part of one
Answer:
22
Step-by-step explanation:
mean is calculated as
mean =
Given the mean of 12 numbers is 20 , then
= 20 ( multiply both sides by 12 )
sum = 240
Given the mean of 8 numbers is 25 , then
= 25 ( multiply both sides by 8 )
sum = 200
Total sum of the 20 numbers = 240 + 200 = 440, then mean of 20 numbers is
mean = = 22