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mart [117]
3 years ago
9

Please help, the problem is due tomorrow

Mathematics
1 answer:
Mrrafil [7]3 years ago
7 0

245 should be closed

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Suppose that 6 people sitting in a enclosed room are each generating about 400 BTUs of body heat per hour. If the room is 20 ft
Crazy boy [7]

Answer:  B) 4 BTUs/ft^3

Step-by-step:

For a cuboid of length L, width W and height H, the volume is:

V = L*W*H

In this case, we have:

L = 20ft

W = 15ft

H = 10ft

Then the volume of the room is:

V = 20ft*15ft*10ft = 3000 ft^3

Now we have 6 people, and each generate 400 BTUs per hour.

Then in total, they generate:

6*400 BTUs per hour

2400 BTUs per hour.

Now we want to find the BTUs per ft^3 produced in 5 hours.

Then if they generate 2400 BTUs per hour, in 5 hours they generate a total of:

5*2400 BTUs = 12000 BTUs

Now we take the quotient between the total BTUs and the volume of the room:

Q = (12000 BTUs)/(3000 ft^3) = 4 BTUs/ft^3

The correct option is B.

8 0
3 years ago
What is 0.000285 expressed in scientific notation
kow [346]

Answer: the answer is 2.85 x 10^-4

Step-by-step explanation:

or u can just look up  Mathway and that will give you the answer and a much quicker way too https

6 0
2 years ago
2 5/16 divided into 7/8 equals what
Whitepunk [10]

Answer:

4 1/14

Step-by-step explanation:

2 5/16=57/16

57/16*8/7=57/16 divided by 7/8

57/16*8/7=57/2*7=57/14=4 1/14

8 0
3 years ago
I need help with question #2. ASAP. Anything is appreciated:)
DedPeter [7]
Y = 4/5x + 30

4/5 because the slope is 4 up, 5 right. 30 is the y-int
4 0
3 years ago
Evaluate the equation. -4x = 14 A.10 B. 7/2 C. -7/2 D. -10
Alex_Xolod [135]

Answer:

c) -7/2

Step-by-step explanation:

14/-4= -3.5

4 0
3 years ago
Read 2 more answers
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