Question

Xanthe is a client that Josie trains. Xanthe’s MHR is 190 beats per minute. Her target heart rate is 70% of her MHR. What is Xanthe’s target heart rate?

Answer 1

The answer is 133 beats per minute.

To calculate this, we will use proportion.
If 190 beats per minute are 100%, how many beats per minute are 70%:
190 bpm : 100% = x : 70%
$\frac{190 bpm}{100} = \frac{x}{70}$
$\frac{70 * 190bpm}{100} = x$
$x = 133 bpm$

Thus, Xanthe's target heart rate is 133 beats per minute.