The simplified ratio of the width of a seating section to the width of the stairs, using proportions, is of:
120.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and these proportions are built in the context of a problem, involving basic arithmetic operations, especially multiplication and division, to find the desired measures.
One example of application of proportions is for ratio problems, as the ratio between two amounts a and b is given by the division of the amount a by the amount b.
A seating section is composed as follows:
- Each set has a width of 24 feet.
Hence the total width of a seating section is calculated as follows:
30 x 24 = 720 feet.
The width of a stair is:
6 feet.
Hence the ratio of these widths is given as follows:
720/6 = 120.
More can be learned about proportions at brainly.com/question/24372153
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Answer:
110.2
Step-by-step explanation:
We can break the image into two by taking the cuboid and the triangular prism separately.
Volume of the cuboid= 3.5x7x3 = 73.5
Volume of prism= Area of triangle x3
i.e. 2(1/2 x 3.5x3.5) x3= 36.7
Add both the volumes = 73.5+36.7= 110.2
-3d/(d^2-2d-8) + 3/(d-4) = -2/(d+2)
factor
-3d/(d-4) (d+2) +3/(d-4) = -2/(d+2)
multiply by (d-4)(d+2) on each side
(d-4)(d+2)[-3d/(d-4) (d+2) +3/(d-4)] = (-2/(d+2))*(d-4)(d+2)
distribute
-3d +3(d+2) = -2(d-4)
distribute
-3d +3d+6 = -2d+8
combine like terms
6 = -2d+8
subtract 8 to each side
-2 = -2d
divide by -2
1 =d
1/5
1/10 / 1/2= 2/10
Then simplify it by 2, it becomes D.1/5
Answer:
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