SOLUTION: When a man is walking, his heart pumps blood at a rate 15 pints/minute greater than when he is sitting. When he i sitting, his lood makes 1/4 as many complete circulations in 10 mi
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Question 936062: When a man is walking, his heart pumps blood at a rate 15 pints/minute greater than when he is sitting. When he i sitting, his lood makes 1/4 as many complete circulations in 10 minutes as when walking. Assuming the mans body contains 10 pints of blood, find the rate his heart pumps when he is walking.
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = blood rate (pints/minute) walking
y = blood rate (pints/minute) sitting
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x = y + 15
x = 4y
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put the system of linear equations into standard form
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x - y = 15
x - 4y = 0
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https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = blood rate (pints/minute) walking = 20
y = blood rate (pints/minute) sitting = 5
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