Answer:

Step-by-step explanation:
Given

per CD
<u>Expenses</u>

per CD
Required
The profit (p)
First, calculate the total income on n CDs



Next, the expenses on n CDs



The profit (p) is:


Open bracket

Collect like terms


Answer:
A
Step-by-step explanation:
I don't really understand the numbers but if both X and Y are negative, then adding the 2 will result in a negative value. Multiplying 2 negative values will be positive, as will dividing them, and sometimes subtracting will too.
Answer:
10 units
Step-by-step explanation:
Area of the triangle (A') = 1/2bh
A' = 1/2bh............ Equation 1
Where b = base of the triangle, h = height of the triangle
From the diagram,
Given: b = 12.5 unit, h = 4 unit
Substitute into equation 1
A' = 1/2(12.5)(4)
A' = 25 squared unit.
Also,
Area of the rectangle (A) = Lenght(L)×width(w)
A = Lw............ Equation 2
From the question,
If the area of the rectangle is 40% larger than the area of the triangle
Therefore,
A = 1.4A'
A = 1.4(25)
A = 35 squared unit.
Also given: w = 3
= 7/2
Substitute into equation 2
35 = L×7/2
7L = 35×2
7L = 70
L = 70/7
L = 10 units
Answer:
im sorry this seems to not be correctly stated
Step-by-step explanation:
Answer:
58.564
or $58.56
Step-by-step explanation: