Solve the problem. Round to two decimal places unless otherwise indicated.
-In the following formula, $y$ is the minimum number of hours of studying required to attain a test score of $x$ : $y =$ $\frac { 0.47 x } { 100.5 - x }$. How many hours of study are needed to score $97 ?$
A) 13.03 hr
B) 27.85 hr
C) 100.02 hr
D) 130.30 hr

Question

Quizplus · Accepted Answer

To find the number of hours needed to score 97, substitute $x = 97$ into the formula: $y = \frac{0.47 \times 97}{100.5 - 97}$. Simplifying gives $y = \frac{45.59}{3.5}$, which equals approximately 13.03 hours.

Solve the Problem yyy Is the Minimum Number of Hours of Studying Required to Indicated

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