Chapter MPS, Problem 2.2MPS

(a)To Find: Equation representing the situation if each student is tutored x hours

To determine

Answer to Problem 2.2MPS

  $\text{⇒}\$40\times 12\left(x\right)=\text{Katrina income}$

Explanation of Solution

Given:

  $\begin{array}{l}\text{Office monthly rent}=\$450\\ \text{Per hour charge}=\$40\\ \text{Number of students}=12\end{array}$

Formula Used:

  $\text{Charge per hour}\times \text{ number of students}\left(\text{Total hour each student tutored}\right)=\text{Income amount}$

Calculation:

  $\begin{array}{l}\text{Charge per hour}\times \text{ number of students}\left(\text{Total hour each student tutored}\right)=\text{Income amount}\\ \text{⇒}\$40\times 12\left(x\right)=\text{Katrina income}\end{array}$

Conclusion:

(b)

To determine

To Find: Profit of Katrina that she got from tutoring the students.

Answer to Problem 2.2MPS

  $\text{Katrina profit}=\$1470$

Explanation of Solution

Given:

  

Formula Used:

  $\text{Income}-\text{expenditure}=\text{total profit}$

Calculation:

  

Conclusion:

Thus the profit made by Katrina is $\$1470$