Answer:
y = 9.65x
Step-by-step explanation:
Given that total revenue is directly proportional to the number of units sold
Let the number of units sold be represented by x and the total revenue be represented by y
Given y∝x
y = kx where k is some constant
Also given that when 500 units are sold, the total revenue is $4825.
Here y=4825 and x=500
Now 
k=9.65
Therefore the equation representing the relation between the total revenue and the number of units sold is
y = 9.65x
Answer: 37.5
% is the correct answer
Answer:
215
Step-by-step explanation:
Answer:
8+7= 15
Step-by-step explanation:
The first four terms are -6, -7, -9 and -13.
Step-by-step explanation:
- Step 1: Given first term, a(1) = -6 and the nth term, a(n) = 2a(n-1) + 5. FInd the first four terms.
⇒ a(1) = -6
⇒ a(2) = 2a(1) + 5 = 2 × -6 + 5 = -12 + 5 = -7
⇒ a(3) = 2a(2) + 5 = 2 × -7 + 5 = -14 + 5 = -9
⇒ a(4) = 2a(3) + 5 = 2 × -9 + 5 = -18 + 5 = -13