Question 149579
70 beats for 1 minute is the same as x beats for 10 seconds.
You need to make sure you use the same time units (seconds and seconds or minutes and minutes). 
70 beats for 60 seconds is the same as x beats for 10 seconds.
Mathematically, that is,
{{{70/60=x/10}}}
{{{x=700/60}}}
{{{x=11.7}}}
Use the integer values around the exact answer. 
The number of beats in 10 seconds should be between 11 and 12 Beats.