Answer:
V = 84.78 ft^2
Step-by-step explanation:
The volume of a cylinder is given by
V = pi r^2 h
V = 3.14 ( 3)^2 (3)
V = 3.14 *9(3)
V = 84.78 ft^2
Answer:
A) 100 + 5x = y
10 + 20x = y
Step-by-step explanation:
100 is the amount Andre started with and 5x is the 5 he adds each week
10 is the amount Elena started with and 20x is the 20 she adds we week
56348372828282828348484959382829594
Answer:
B) 16 . . . . the value of Z
Step-by-step explanation:
The problem statement tells us that ...
... x = y +12
... z = y - 8
Then x - z = (y +12) -(y -8) = 20.
In ratio units, we have ...
... x:z = 9:4
The difference of these in ratio units is 9-4 = 5, so each ratio unit must stand for 20/5 = 4 units of X, Y, or Z. Hence ...
... Z = 4·4
... Z = 16
_____
<em>Check by finding the other values</em>
... X = 9·4 = 36
... Y = X -12 = 24 = Z +8 . . . . yes
The beginning of the line segment starts at 5, and ends at 9.
Therefore,
5 - 9 = 4
The length of the segment is 4.
