Qt5 SDK Linux Mint Installation Guide
You are Welcome! The Linux Tutorial Shows You Step-by-Step How to Install Qt5 SDK and Qt Creator on Mint GNU/Linux Distribution.
And in particular here is described the Mint Qt5 SDK Open-Source Installation.
Finally, the QT5 SDK includes the tools you need to build Desktop, Embedded and Mobile Applications with Qt from a single install. This is the recommended way to get started with Qt.