Two cars are driving directly towards each other. car one is traveling at a rate of 45 miles per hour, while car two is traveling at a rate of 75 miles per hour. after both cars have been driving for 15 minutes they crash into one another. which equation represents this situation? assume car one travels x miles and car two travels y miles.

x/45 = y/75

Step-by-step explanation:

Car 1

Distance =x

rate = 45 miles per hours

t = 15 minutes

D=rt

x = 45*15

Car 2

Distance =y

rate = 75 miles per hours

t = 15 minutes

D = rt

y = 75*15

The 15 are the same in both equations

x /45 = 15

y /75 = 15

Set them equal

x/45 = y/75

there are no short passages to look at

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.