Answer:
54 minutes
Step-by-step explanation:
From the question, we are given;
- A room with dimensions 5.2 m by 4.3 m by 2.9 m
- The exchange air rate is 1200 L/min
We are required to determine the time taken to exchange the air in the room;
First we are going to determine the volume of the room;
Volume of the room = length × width × height
= 5.2 m × 4.3 m × 2.9 m
= 64.844 m³
Then we should know, that 1 m³ = 1000 L
Therefore, we can convert the volume of the room into L
= 64.844 m³ × 1000 L
= 64,844 L
But, the rate is 1200 L/min
Thus, time = Volume ÷ rate
= 64,844 L ÷ 1200 L/min
= 54.0367 minutes
= 54 minutes
Therefore, it would take approximately 54 minutes
The value of n such that the number n and -3/4 are additive inverses is 3/4
<h3>How to determine the value of n?</h3>
The statement is given as:
The number n and -3/4 are additive inverses
The above statement means that
n = -1 * -3/4 --- by the definition of additive inverses
Next, we evaluate the product of -1 and -3/4
n = 3/4
Hence, the value of n such that the number n and -3/4 are additive inverses is 3/4
Read more about additive inverses at
brainly.com/question/1548537
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Answer:
10 inches
Step-by-step explanation:
3 = 10 because it makes sense
The value of y is 9 to make the equation true.
