Question

PLEASE HELP ME!
When you exercise, your pulse rate rises. Recommended pulse rates vary with age and physical condition. For vigorous exercise such as jogging, the inequality 0.7(220 – a) ≤ R ≤ 0.85 (220 – a) gives a target range for pulse rate R (in beats per minute) based on age a( in years).

V. In what range should your pulse rate be when you are jogging?
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Answer:__________________


VI. What is the target range for a person 15 years old?
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Answer:_________________

Answer 1

for the first one it would depend on the age but for the second one just plug in 15 for a

Answer 2

I still dont get how to do it

Answer 3

which one

Answer 4

both

Answer 5

for the first one it would just be the inequality 0.7(220 – a) ≤ R ≤ 0.85 (220 – a)

Answer 6

what is the answer

Answer 7

that is the answer. since u dont know the age of the person jogging

Answer 8

oh 15

Answer 9

no .7(220 – a) ≤ R ≤ 0.85 (220 – a) is the answer for the first one

Answer 10

The age of the girl is 15 i mean

Answer 11

for both parts?

Answer 12

yes

Answer 13

that makes the questions the same. are they the same questions

Answer 14

either way the asnwer for the 15 year old would be 143.5\[143.5\le R \le174.25\]

Answer 15

thanks!:)

Answer 16

do i get a fan and a medal?

Answer 17

:)