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19. To calculate her target heart rate. Shayla subtracts her age, a. From 220 and then takes 70% of the difference. Which equation should Shayla use to calculate r, her target heart rate?
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19.

To calculate her target heart rate. Shayla subtracts her age, a. From 220 and then
takes 70% of the difference. Which equation should Shayla use to calculate r, her
target heart rate?

User Sadegh
by
8.2k points

1 Answer

5 votes

Answer:

I think r=0.7(220-a)

User Adamkwm
by
8.7k points
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