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The maximum recommended pulse rate R, when exercising .for a person who is x years of age is given by the equation R = 176 - 0.8 x . what is the age, in years , of a person whose maximum recommended pulse rate when exercising is 140?

The maximum recommended pulse rate R, when exercising .for a person who is x years of age is given by the equation R = 176 - 0.8 x . what is the age, in years , of a person whose maximum recommended pulse rate when exercising is 140? Correct Answer 45

প্রশ্নে বলা হচ্ছে যে, x বছর বয়সের একজন লোক যখন Exercise করে তখন তার Pulse এর সমীকরণ হলো R = 176 - 0.8x, যেখানে R সর্বোচ্চ Pulse rate নির্দেশ করে । একজন ব্যক্তির Exercising এর সময় Pulse rate 140 হলে তার বয়স কত ? দেয়া আছে, Maximum pulse rate R = 140 এবং x = বয়স । অতএব, R = 176 - 0.8x = > 140 = 176 - 0.8x = > 0.8x = 176 - 140 = 36 x = 36/0.8 = 45

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The maximum recommended pulse rate R, when exercising , for a person who is x years of age is given by the equation R = 176- 0.8 x. what is the age , in years , of a person whose maximum recommended pulse rate when exercising is 140?
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