Simplifying
20x + -5y = 40
Solving
20x + -5y = 40
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '5y' to each side of the equation.
20x + -5y + 5y = 40 + 5y
Combine like terms: -5y + 5y = 0
20x + 0 = 40 + 5y
20x = 40 + 5y
Divide each side by '20'.
x = 2 + 0.25y
Simplifying
x = 2 + 0.25y
Well both sides are angles whole angles equally 180 scense the exterior is 21 the answer should be c
Answer:
−
2x-32
Step-by-step explanation:
Answer:
Sierra found that 15 meters is equivalent to 49.2 feet. Which of the following is an equivalent ratio?
3 to 8.84
5 to 18.22
7 to 22.96
9 to 25.32
Step-by-step explanation:
The area of the pool that needs to be covered is 960.42 square feet.
<h3>What is Pythagoras theorem give example?</h3>
- To determine the undiscovered side of a right-angled triangle, utilize the Pythagoras theorem.
- The hypotenuse (third side) of a right-angled triangle, for instance, can be determined using the formula c2 = a2 + b2, where 'c' stands for the hypotenuse and 'a' and 'b' are the two legs.
According to the question:
- We have been given that a community pool that is shaped like a regular pentagon needs a new cover for the winter months.
- To find the area of community pool we will use area of pentagon formula.
- , where, a represents the apothem or perpendicular distance from the center of the pentagon and p represents perimeter of pentagon.
Let us find the perimeter of our given pentagon by multiplying each side length by 5.
Now let us find apothem of our pentagon by using Pythagoras theorem.
Upon substituting our given values in above formula we will get,
Therefore, the area of the pool that needs to be covered is 960.42 square feet.
Learn more about Pythagoras theorem here:
brainly.com/question/343682
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