Alvin is going to take a flight from Seattle, Washington, to Atlanta, Georgia. The flight leaves Seattle at 10:25 p. m. Seattle time and arrives in Atlanta at
6:10 a. m. Atlanta time. If Washington is in the Pacific time zone and Georgia
is in the eastern time zone, how long is the flight?
Use the following to help you answer the question.
12:00 p. m. eastern time = 11:00 a. m. central time = 10:00 a. m. mountain
time = 9:00 a. m. Pacific time.

50-60=10

step-by-step explanation:

(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