Question 145962
Let x= number of beats per minute



Since the number of beats per minute (bpm) should be within 137 and 156 , this means that we have the given inequality



{{{137< x <156}}}



But since we only want to know the bpm in 10 seconds, we need to divide everything by 6 (since {{{60/6=10}}})



{{{137/6< x /6<156/6}}}



{{{22.833< x /6<26}}} Simplify






So in 10 seconds, she should be between 23 and 26 bpm