Chapter 6.1, Problem 58PFA

To determine

How much did they make on Tuesday by selling 53 hamburgers.

Answer to Problem 58PFA

  $\$262.59$

Explanation of Solution

Given:

They make $545 from selling 110 hamburgers on Monday.

Concept Used:

Rules of Addition/ Subtraction:

• Two numbers with similar sign always get added and the resulting number will carry the similar sign.
• Two numbers with opposite signs always get subtracted and the resulting number will carry the sign of larger number.

Rules of Multiplication/ Division:

• The product/quotient of two similar sign numbers is always positive.
• The product/quotient of two numbers with opposite signs is always negative.

Calculation:

In order to find how much they will make on Tuesday by selling 53 hamburgers, use the unitary method and simplify further as shown below,

  $\begin{array}{c}\text{On selling }110\text{hamburgers, they make}=\$545\\ \text{On selling }1\text{hamburger, they will make}=\$\frac{545}{110}\\ \text{So,}\\ \text{On selling }53\text{hamburgers, they will make}=\$\frac{545}{110}\times 53\\ =\$262.59\end{array}$

Thus, on Tuesday they will make $\$262.59$ .