Solve the Problem $y$ Is the Minimum Number of Hours of Studying Required to Minimum

question 94

Multiple Choice

Solve the problem.
-In the following formula, $y$ is the minimum number of hours of studying required to attain a test score of $x$ : $y = \frac { 0.53 x } { 100.5 - x }$ . How many hours of study are needed to score 89 ?

• A) \(7.16 \mathrm { hr }\)
• B) \(4.1 \mathrm { hr }\)
• C) \(41.00 \mathrm { hr }\)
• D) \(100.90 \mathrm { hr }\)

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