Solve the Problem $\mathrm { f } ( \mathrm { x } )$

question 463

Multiple Choice

Solve the problem.
-In the following formula, $\mathrm { f } ( \mathrm { x } )$ is the minimum number of hours of studying required to attain a test score of $x : f ( x ) = \frac { 0.47 x } { 100.5 - x }$ . How many hours of study are needed to score 83 ?

• A) \(22.30 \mathrm { hr }\)
• B) \(2.23 \mathrm { hr }\)
• C) \(100.93 \mathrm { hr }\)
• D) \(4.51 \mathrm { hr }\)

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Definitions:

Car Loan

A loan granted specifically for the purchase of a car, where the vehicle itself often secures the loan.

Compounded Quarterly

Calculation of interest on a loan or investment where the interest is added to the principal four times a year.

Accumulated Amount

The total amount accumulated over time, considering various factors like initial principal and compound interest.

Compounded Monthly

The process of adding interest to the principal sum of a deposit or loan on a monthly basis, leading to interest earning interest.