Answer:
14
Step-by-step explanation:
First, find the percentage of the other types of music.
Since 30 + 50 = 80, the other 20% will be other music.
To find 20% of 70, multiply 70 by 0.2:
70(0.2)
= 14
So, there are 14 CDs that are other types of music.
L*w=20, so l=20/w
l=2w+3
20/w=2w+3
20=2w^2+3w
2w^2+3w-20=0
Slip and slide
w^2+3w-40
(w+8)(w-5)
(w+8/2)(w-5/2)
(w+4)(2w-5)
w= -4 or 5/2, but since width must be positive, it is 5/2
(5/2)*l=20
l=8
Final answer: Length= 8, Width= 5/2
Answer:
units
Step-by-step explanation:
Method 1
The given revenue function is 
.
We rewrite this function in the vertex form by completing the square.
.
.
We add and subtract half the coefficient of 
multiplied by a factor of 
, which is 
to get,
.
We factor out of the first two expressions again to get,
.
We now got a perfect square.
.
Therefore the maximum revenue occurs when units were sold.
Method 2
Use derivatives to find the x-value of the maximum point.
At maximum point,
.
.
.
.
Answer:
Step-by-step explanation:
Easy. . . So to find the other ratio we would divide 24 by 6 and we would get 4 next we mulitply 5 x 4 and we get 20..... 20 + 24 = 44 Answer 44
