- Susan drives north on the 405 Freeway at 50 miles per hour. Two hours after Susan
passes under Westminster Blvd, Maria
enters the 405 Freeway at Westminster Blvd
and heads north at 60 miles per hour. If both
cars maintain their average speeds, how long
will it take Mary to catch up with Susan?

If both cars maintain their average speeds, it will take 12 hours for Mary to catch up with Susan.

Step-by-step explanation:

Since Susan drives north on the 405 Freeway at 50 miles per hour, and two hours after Susan passes under Westminster Blvd, Maria enters the 405 Freeway at Westminster Blvd and heads north at 60 miles per hour, if both cars maintain their average speeds, to determine how long will it take Mary to catch up with Susan the following calculation must be performed:

Hour 1 = 50

Hour 2 = 100

Hour 3 = 150 - 60

Hour 4 = 200 - 120

Hour 5 = 250 - 180

Hour 6 = 300 - 240

Hour 7 = 350 - 300

Hour 8 = 400 - 360

Hour 9 = 450 - 420

Hour 10 = 500 - 480

Hour 11 = 550 - 540

Hour 12 = 600 - 600

Therefore, if both cars maintain their average speeds, it will take 12 hours for Mary to catch up with Susan.

( - 4 , -7 )

all the lines must parallel  

step-by-step explanation:

coordinates of c = ( - 1 , 2 )

3 units left = ( -4 , 2 )

9 units down = ( - 4 , 11 )