Question

PLEASE HELP! *WILL MEDAL*

Mr. and Mrs. Miller both get in their cars and begin to drive at the same time. Mr. Miller is 280 mi from their house and drives directly home at a constant rate of 40 mph. Mrs. Miller is at their house and drives away from the house at a constant rate of 30 mph.



Let d represent distance from home, and let t represent time in hours.



Which system models this situation?



A.


d = 280 + 40t
d = 30t


B.


d = 280 − 30t
d = 40t


C.


d = 280 − 40t
d = 30t


D.


d = 280 − 40t
d = 280 + 30t

Answer 1

d

Answer 2

How do you know?

Answer 3

im good at math trust me :D

Answer 4

Okay, thanks.