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GREYUIT [131]
2 years ago
7

A human body while sleeping generates about 300 BTUs of body heat per hour. If two people are sleeping in a bedroom that is 15 f

t × 12 ft × 10 ft, how many BTUs per cubic foot do they produce in 7 hours? (to the nearest tenth) A) 0.2 BTUs/ft3 B) 1.2 BTUs/ft3 C) 1.5 BTUs/ft3 D) 2.3 BTUs/ft3
Mathematics
1 answer:
Katarina [22]2 years ago
4 0
Given:
one person can produce:
E = <span>300 BTUs of body heat per hour
dimensions of the bedroom is:
V = </span><span>15 ft × 12 ft × 10 ft

required: is the energy per volume if 2 persons sleeps in 7 hours
let T be the total energy produce per volume

T = (</span><span>300 BTU per hour per person) ( 7 hours) ( 2 person) / ( </span> <span>15 ft × 12 ft × 10 ft)

T = 2.3 BTU / ft^3</span>
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multiplying through by 3, we have

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