Answer:
Step-by-step explanation:
You have to divide this by "2"
Nathan has R528 available on his credit card account. he wants to buy a music system for R2184. The bank does not allow credit t
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All functions have an inverse expression.
- The cost function is:
.
- The inverse function is:
From the question, we have the following observations:
- Base fare = 50000 pesos for first 100
- Additional guest = 100 pesos
So, the cost function would be:
Where: x represents the number of guests, and C(x) represents the cost function
Expand
Evaluate like terms
To calculate the inverse function, we have:
Replace C(x) with y
Swap x and y
Subtract 40000 from both sides
Divide both sides by 100
Rewrite as:
Split
Hence, the inverse function is:
Read more about functions and inverse at:
if we take 2100 to be the 100%, what is 273 off of it in percentage?