Question

Derrick and Mark are brothers who live in the same house. Mark is home, and Derrick is 5 mi from home. Both boys begin riding their bikes at the same time. Derrick rides directly home at a constant rate of 15 mph, and Mark rides away from home at a constant rate of 18 mph.



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



Which system models this situation?





A.


d = 5 − 15t
d = 18t


B.


d = 15 − 5t
d = 18t


C.


d = 5 + 15t
d = 18t


D.


d = 5 − 15t
d = 5 + 18t

Answer 1

Please help ill medal if i have one

Answer 2

i think its c

Answer 3

Look im just trying to get a good grade do you know anyone

Answer 4

@!Call~Me~Addi!

Answer 5

A

Answer 6

@perl are you sure?

Answer 7

yes

Answer 8

I will stake 20 medals on it

Answer 9

Ok can you guys help with 4 more

Answer 10

plug in t = 0, derrick is 5 miles away

Answer 11

@gorv

Answer 12

and mark is 0 miles away (since he is home). the only one that matches is A

Answer 13

@perl

Answer 14

whats up ?

Answer 15

Can you please help with 4 more

Answer 16

close this question and make new one

Answer 17

and please medal me

Answer 18

lol he is right

Answer 19

k how do i medal i have 1

Answer 20

you have to do undo the medal you gave

Answer 21

who did you give medal

Answer 22

Idk i didnt give 1

Answer 23

tag me after you close this question
new question = more medals