# math

Your optimal exercise heart rate for cardiovascular benefits is calculated as follows: Subtract your age from 220 and then find 80% of the difference.

Find the optimal heart rate for a 40-year-old and for a 10-year-old.

Rounded to the nearest whole number, the optimal rate for the 10-year-old is _____% greater than the optimal rate for a 40-year-old.

1. 👍 0
2. 👎 0
3. 👁 80
1. 0.8(220 - 40) =

0.8(220 - 10) =

Take it from there.

1. 👍 0
2. 👎 0

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