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?

Answer 1

situation when they will meat ??

Answer 2

distance travelled by both must be equal to 5 mile

Answer 3

distance= speed *time

Answer 4

so speed x"s time

Answer 5

derrick with 15mph travel in time =??

Answer 6

their combined speed is 33 mph

Answer 7

- assuming their are approaching each other directly

Answer 8

Those are the answer choices

Answer 9

derrick speed=15
time=t
distance=speed * time

Answer 10

mark
speed=18mph
time=t
distance=??

Answer 11

sum of distance travelled by both =5 mi

Answer 12

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 13

The answer choices

Answer 14

@perl can you help

Answer 15

@gorv

Answer 16

for derrick

Answer 17

speed= 15
time=t
distance=speed*time
so distance =??
plug in the values and tell what u got??

Answer 18

38

Answer 19

i dont understand

Answer 20

how u got 38

Answer 21

distance= speed*time
what is speed of derrick

Answer 22

15+18=33 so i added 5
heres the answer choices,
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 23

@iGreen

Answer 24

can you please just help me @gorv

Answer 25

I can help

Answer 26

derrick speed=??

Answer 27

ok @perl do you know this
I have to go somewhere in a few and have 5 math questions plz help

Answer 28

@perl lol who stopped u

Answer 29

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.

Answer 30

Look guys i just need help

Answer 31

I can help

Answer 32

one sec

Answer 33

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
theres my choices for answers

Answer 34

i will draw the situation

Answer 35

Ok :D