The answer is B since he bought 4 in all it is x+y =4 . x=dvd y= blue ray discs .
so 2x + 5y =11
2x since dvds are $2
5y since blue ray discs are $5
11 since that’s the total
Answer:
Step-by-step explanation:
Answer:
1 = d
2= $128
3= d
Step-by-step explanation:
Answer:
The radius of the silo is 5.788 feet.
Step-by-step explanation:
Since the silo has the shape of a cylinder, then;
Volume of the silo = Volume of a cylinder = 
h
Where: r is the radius of the silo, and h is the height.
Given that: volume = 2106 cubic feet, and height = 20 feet.
Then,
2106 =
x
x 20
2106 = 

2106 x 7 = 440
14742 = 440
= 
= 33.5045
⇒ r = 
= 5.78831
r = 5.788 feet
The radius of the silo is 5.788 feet.