MATHalino Now Offers Online Courses

This is not an announcement or promotional post. This is about my experience in building the platform for online courses.

 

Creating an online course is monumental specially to a small website like MATHalino. Despite being manned by one person from the ground up, the development of this functionality is actually progressing by degrees. I've been conceiving this feature as far as I can recall, way before online courses become a common thing in the Philippines. What makes me unable to implement it before comes from three factors.
 

k2X6fTJ-0 Situation. A tank is supplied by two pipes A and B and emptied by a third pipe C.

Situation

A tank is supplied by two pipes A and B and emptied by a third pipe C. If the tank is empty and all pipes are opened, the tank can be filled in 20 hours. If the tank is full and A and C are opened, the tank can be emptied in 4 hours. If the tank is full and B and C are opened, the tank can be emptied in 2 hours. Pipe A supplies 50 liters per minute more than B.

dYv94eu-0 Situation. Charles’s law states that for a given mass of gas at constant pressure the volume is directly proportional to its thermodynamic temperature.

Situation

Charles’s law states that for a given mass of gas at constant pressure the volume is directly proportional to its thermodynamic temperature. A gas occupies a volume of 2.25 liters at 400°K. Determine the following: