Chapter 6, Problem 8MCQ

a)

To determine

To find: the cost to attend the concert per hour.

Answer to Problem 8MCQ

The cost to attend the concert $=30\$\text{/hour}$

Explanation of Solution

Given information:

Consider it costs $\$45$ for $1.5\text{ hours}\text{.}$

Calculation:

The cost per one hour

  $\begin{array}{l}=\frac{45}{1.5}\\ =30\$\text{/hour}\end{array}$

Hence, cost $=30\$\text{/hour}$

b)

To determine

To find: the cost to attend the concert per minute.

Answer to Problem 8MCQ

The cost to attend the concert $=0.468\$/\min$

Explanation of Solution

Given information:

Consider it costs $\$45$ for $1.5\text{ hours}\text{.}$

Calculation:

  $\begin{array}{l}1.5\text{ hours}\text{.=1}\text{.6}\times \text{60 minutes}\\ \text{ =96 minutes}\end{array}$

The cost per one minute

  $\begin{array}{l}=\frac{45}{96}\\ =0.468\$/\min \end{array}$

Hence, cost $=0.468\$/\min$