Answer:
R, in beats per minute, can be approximated by the formulas, where a represents the person's age.
where R= 143 - 0.65a for women.... (1)
and R= 165 - 0.75a for men,..... (2)
So by implementing these two equation we get a = 40
So the age will be 40 years old
know more about “Mathematical Equation” here: brainly.com/question/1214333
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I would tell you but the answer wont show sorry. :)
52-35=17
17/0.50= 34
She sends 34 messages in a month
Find a right angle and multiply each side and then add them :) hope this helps
