Divide by the coefficient of y.
y = (45/9)x
y = 5x
The constant of proportionality is 5.
The perimeter of the polygon that circumscribes the circle is 78 cm
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
The circle tangent theorem states that tangents which meet at the same point are equal in length. Hence:
The missing lengths are 8, 6, 9 and 16.
Perimeter of the polygon = 2(8) + 2(6) + 2(9) + 2(16) = 78 cm
The perimeter of the polygon that circumscribes the circle is 78 cm
Find out more on equation at: brainly.com/question/2972832
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Answer:
1. 8/$12=21/$x then cross multiply.
2. 1/$1.5, we're looking for cost so $1 is more reasonable
3. $31.5
Step-by-step explanation:
12x 21/ 8 = 31.5
I believe the solution is x=
.
I hope this helped you out!
