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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 h…

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 h…
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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?

asked
User Sadegh
by
8.2k points

1 Answer

5 votes

Answer:

I think r=0.7(220-a)

answered
User Adamkwm
by
8.7k points
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