GMAT Question > The maximum recommended pulse rate R, when ex...

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

- a)40
- b)45
- c)50
- d)55
- e)60

Correct answer is option 'B'. Can you explain this answer?

Substitute 140 for R in the given equation and solve for x.

140 = 176 - 0.8x

-36 = -0.8x

-36/-0.8 = x

45 = x

140 = 176 - 0.8x

-36 = -0.8x

-36/-0.8 = x

45 = x

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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 - 0.8x. What is the age, in years, of a person whose maximum recommended pulse rate when exercising is 140?a)40b)45c)50d)55e)60Correct answer is option 'B'. Can you explain this answer? for GMAT 2023 is part of GMAT preparation. The Question and answers have been prepared according to the GMAT exam syllabus. Information about The maximum recommended pulse rate R, when exercising, for a person who is x years of age is given by the equation R = 176 - 0.8x. What is the age, in years, of a person whose maximum recommended pulse rate when exercising is 140?a)40b)45c)50d)55e)60Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for GMAT 2023 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The maximum recommended pulse rate R, when exercising, for a person who is x years of age is given by the equation R = 176 - 0.8x. What is the age, in years, of a person whose maximum recommended pulse rate when exercising is 140?a)40b)45c)50d)55e)60Correct answer is option 'B'. Can you explain this answer?.

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Substitute 140 for R in the given equation and solve for x.140 = 176 - 0.8x-36 = -0.8x-36/-0.8 = x45 = x