problem 2: a tutoring service charges $50 for the first hour and $20 for each additional 15 minutes. if a…

problem 2: a tutoring service charges $50 for the first hour and $20 for each additional 15 minutes. if a student books a 2 hour and 30 minute session, how much will they pay?

problem 2: a tutoring service charges $50 for the first hour and $20 for each additional 15 minutes. if a student books a 2 hour and 30 minute session, how much will they pay?

Answer

Explanation:

Step1: Calculate additional time

The total session is 2 hours and 30 minutes. The first - hour costs $50. The remaining time is 2 hours 30 minutes - 1 hour = 1 hour 30 minutes. Since 1 hour 30 minutes = 90 minutes, and each additional unit is 15 minutes, the number of 15 - minute units in the remaining time is $\frac{90}{15}=6$.

Step2: Calculate cost of additional time

Each 15 - minute additional unit costs $20. So the cost of the additional 1 hour 30 minutes is $20\times6 = 120$.

Step3: Calculate total cost

The total cost is the cost of the first hour plus the cost of the additional time. So the total cost is $50+120 = 170$.

Answer:

170