Step-by-step explanation:
First step is to identify what the problem is asking for and what is given.
9 laps in 28 minutes
Searching for number of laps in 1 hour and 15 min.
1 hour + 15 min. = 75 minutes convert to minutes
9 laps / 28 minutes = x laps / 75 minutes create an equation
9/28 = x/75
9*75 = 28x cross multiply
675 = 28x
x = 675/28 = 24.12 simplify
Melanie can run 24 complete laps in 1 hour and 15 minutes.
