A. What should be my heart rate when I am engaged in a moderately intense exercise? STEP 1. Use the equation 208 - 0.7 (age) a. 0.7 X 20 y/o = 22 . b. 208-30 (answer to a.) = 60 STEP 2. Subtract your resting heart rate (beats per minute or bpm) from your answer to Step 1. Step 1 - resting heart rate bpm = STEP 3A. (For minimum heart rate): Multiply your answer to Step 2 by 40%. % Step 2 x 0.40 = x = STEP 4A. Add your resting heart rate to your answer from Step 3. This represents the MINIMUM heart rate you should try to achieve when exercising at a MODERATE intensity. Resting heart rate + Step 3.A STEP 3B. (For maximum heart rate): Multiply your answer to STEP by 55%. Step 2 2 x 0.55 = STEP 4B. Add your resting heart rate to your answer from Step 3. This esents the MAXIMUM heart rate you should try to achieve exercising at a MODERATE intensity. Resting heart rate + Step 4 For mode​