Answer:
11/15 red, 4/15 blue
Step-by-step explanation:
There are 15 marbles in all so that is the denominator.
The numerator is the number of marbles for each color.
So...
11 red marbles / 15 total marbles
4 blue marbles / 15 total marbles
Answer:
2.9
Step-by-step explanation:
x+3.2=6.1
x=6.1-3.2
x=2.9
Answer:
9.18%
Step-by-step explanation:
First, find the z-score.
z = (x − μ) / σ
z = (18 − 19.6) / 1.2
z = -1.33
Use a chart or calculator to find the probability:
P(Z < z) = 0.0918
Answer:

Step-by-step explanation:
From the question we are told that
Length 
Height 
Width 
Generally the equation for Volume of the Rectangular prism is mathematically given by



Therefore the number of half 1/2 inch cube X in v is


Answer:
Therefore the friends will have to buy 511 feet of fence (rounding up) or 510 feet of fence ( to the nearest foot).
Step-by-step explanation:
i) perimeter of rectangular yard = 319 feet
ii) perimeter of yard of friends 
iii) Therefore the friends will have to buy 511 feet of fence or 510 feet of fence ( to the nearest foot).