Ok, a fun hack
if f⁻¹(a)=b then f(b)=a
so if f⁻¹(7)=b then f(b)=7
to find b, find x such that f(x)=7
7=0.5(3)^x
times both sides by 2 (or divide both sides by 0.5)
14=3^x
take log₃ of both sides
The value is 6 hundreths
it is in the hundreths place, so that would be your answer
:)
Answer:
<u>The retail price of the car is US$ 10,024 Rounding to the next whole</u>
Step-by-step explanation:
1. Let's check the information given to us to answer the question correctly:
Mark up the purchase price = 17.4%
Price of purchase of the car = $ 8,538
2. What is the retail price of the car at this dealership?
For calculating the retail price of the car, we will use the Rule of Three Simple, this way:
x = retail price of the car
x * 1 = 8,538 * 1.174
x = 10,023.61
<u>The retail price of the car is US$ 10,024 Rounding to the next whole</u>
