how would one convert 15 seconds to hours?\na. $15\\text{ seconds} \\times \\frac{3600\\text{…

how would one convert 15 seconds to hours?\na. $15\\text{ seconds} \\times \\frac{3600\\text{ seconds}}{1\\text{ hour}}$\nb. $15\\text{ seconds} \\times \\frac{1\\text{ hour}}{3600\\text{ seconds}}$\nc. $15\\text{ seconds} \\times 60\\text{ seconds}$\nd. $15\\text{ seconds} \\times \\frac{1}{3600\\text{ seconds}}$
Answer
Answer:
B. 15 seconds × $\frac{1\ hour}{3600\ seconds}$
Explanation:
Step1: Identify conversion factor
1 hour = 3600 seconds, so conversion factor is $\frac{1\ hour}{3600\ seconds}$
Step2: Set up conversion
Multiply 15 seconds by the conversion factor: $15\ seconds \times \frac{1\ hour}{3600\ seconds}$
Step3: Select correct option
Option B matches the setup.