The result of your conversion between mach and mile/second appears here
To convert between Mach and Mile/second you have to do the following:
First divide 340.29 / 0.3048*5280 = 0.2114464
Then multiply the amount of Mach you want to convert to Mile/second, use the chart below to guide you.
Symbol: ma
No description
Symbol: m/s
No description