If marissa left her apartment at 7:00am riding her bike at 12 mi/h. At 7:30 am her roommate set off after her riding her moped at 18 mi/h. How long did it take marissas roommate to find marissa

The answer to your question is It will take 1 hour to find Marissa

Step-by-step explanation:

Data

Marissa time = 7:00 am speed = 12 mi/h

Roommate time = 7:30 am speed = 18 mi/h

Process

1. - Calculate the distance traveled by Marissa in 30 min (0.5 h)

d = vt

d = (12) (0.5)

d = 6 mi

2. - Write an equation to solve this problem

Distance traveled by Marissa = Distance traveled by the roommate

6 + vmt = vrt

- Substitution

6 + 12t = 18t

- Solve for t

6 = 18t - 12t

6 = 6t

t = 6/6

t = 1 h