Answer:
the answer is B
Step-by-step explanation:
im not sure what else to say but my answer had to be longer
Multiply the second equation by 3
-4x+9y=9
3x-9y=-18
add the equations together
-x=-9 Simplify
x=9
now plug in your x value
(9)-3y=-6 Simplify
-3y=-6-9
-3y=-15
y=5
Given the previous length of the bedroom and the current scale factor, the length of the bedroom in the current scale drawing is 1008ft.
<h3>What is the length of the bedroom in the scale drawing?</h3>
Scale factor is simply a measure for similar figures, who look the same but have different scales or measures.
To get new dimension;
New dimension = scale factor × current dimension
Given that;
- Current length of the bedroom = 9ft
- Current width of the bedroom = 11ft
- Scale factor = 112
- New length of the bedroom = ?
New dimension = scale factor × current dimension
New length of the bedroom = 112 × 9ft
New length of the bedroom = 1008ft
Therefore, given the previous length of the bedroom and the current scale factor, the length of the bedroom in the current scale drawing is 1008ft.
Learn more about scale factor here: brainly.com/question/22312172
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For this case we have that by definition, the density is given by:

Where:
M: It is the mass
V: It is the volume
We find the volume of the cylinder:

Where:
r: It is the radius of the cylinder
h: It is the height

So the density is:

Answer:

A. Find 10% of $20, which is $2. Then subtract the sale 20-2, which is $18
B. Since you know the price without taxes is $18, you have to multiply 8.5% of 18, which is $1.53. $18.00 + $1.53= $19.53
So the answer is $19.53
Hope this helped