The number of btus that are needed to cool lucia’s apartment is 20,400 btus.
<h3>BTUs needed</h3>
First step
Left side=12×10×20
Left side=2400 cubic feet
Middle =16×10×(20-9)
Middle =16×10×11
Middle =1,760 cubic feet
Right side=20×10×20
Right side= 4000 cubic feet
Second step
BTUs:
BTUs=(2400+1760+4000)×2.5
BTUs=8160×2.5
BTUs=20,400 Btus
Therefore the number of btus that are needed to cool lucia’s apartment is 20,400 btus.
Learn more about btus here:brainly.com/question/4260087
The sets A and sets B contains items called elements
It is true that the set A is equal to set B
<h3>How to determine the true statement?</h3>
The sets are given as:
Set A and set B
Since the sets have the same power set, then we have:
P(A) = P(B)
The above means that:
For every element X in A, then the element is also in B
And
For every element Y not in A, then the element is also not in B
So, we can conclude that:
All subsets of the set A are subsets of the set B and vice versa
Hence, the set A is equal to set B
Read more about sets at:
brainly.com/question/24713052
Answer
4%
Explanation
Based on the given conditions, formulate:
Calculate the sum or difference:
Convert decimal to fraction:
Divide a fraction by multiplying its reciprocal:
Cross out the common factor:
Cross out the common factor:
Multiply a number to both the numerator and the denominator:
Write as a single fraction:
Calculate the product or quotient:
Rewrite a fraction with denominator equals 100 to a percentage:4%
Answer: 4%