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lakkis [162]
3 years ago
15

What is the estimated maximum heart rate for a 21 year old?

Health
2 answers:
Harlamova29_29 [7]3 years ago
6 0
B. 199
220-21= 199
199 * 0.50 = 100
199 * 0.75 = 149.
Hope this helps.
kiruha [24]3 years ago
5 0

Answer:

B. 199

Explanation:

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