(20 points and brainliest for best)
ken’s heart rate went from 74 beats per minute while
resting to 148 beats per minute while exercising. what is the
percent increase in his heart rate?

Subtract the original from the new to find the difference:

148 - 74 = 74

Now divide the new by the difference:

148 / 74 = 2

Multiply that by 100 to get the percentage:

2 x 100 = 200%

It was a 200% increase.

good luck on your studies! : )

david edward.