Patty plans to hire a clown for her child's birthday party. Party Planners charges $20 for decorations plus $8 per hour for the clown. Fun Times Inc. charges $25 for decorations plus $6 per hour for the clown. a) Write an equation to represent the total cost for the party from Party Planners. b) Write an equation to represent the total cost for the party from Fun Times Inc. c) Find the point of intersection and explain what it means in this context. d) Decide when you would hire Party Planners and when you would hire Fun Times Inc.

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step-by-step explanation:

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(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240