A study room costs $\$5$ to book plus $\$3.60$ per hour. The hourly charge is proportional to ti

Question

A study room costs $\$5$ to book plus $\$3.60$ per hour. The hourly charge is proportional to time, and any duration is allowed. A student has $\$20$. What is the maximum booking duration, in hours and minutes?

Accepted Answer

$4\frac16$ hours, or $4$ hours $10$ minutes.

Linear Equations and Inequalities

Linear Equations and Inequalities

Solution:

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