Chapter 0.5, Problem 43E

To determine

To find: The number of slices of pizza that Bobby ate out of 12 slices.

Answer to Problem 43E

Bobby ate 3 slices of pizza out of 12 slices.

Explanation of Solution

Given information:

A large pizza at Pizza Shack has 12 slices. Bobby ate $\frac{1}{4}$ of pizza.

Formula used:

Product of two real numbers is obtained when they are multiplied together. That is two or more numbers are separated by multiplication signs $\left(\right),\times \text{ or }\cdot$ .

Calculation:

Consider the given statement “A large pizza at Pizza Shack has 12 slices. Bobby ate $\frac{1}{4}$ of pizza.”

Number of slices of pizza that Bobby ate will be calculated as when 12 is multiplied by $\frac{1}{4}$ .

Recall that product of two real numbers is obtained when they are multiplied together. That is two or more numbers are separated by multiplication signs $\left(\right),\times \text{ or }\cdot$ .

So, number of slices that Bobby ate is calculated as,

  $12\cdot \frac{1}{4}=\frac{12}{4}$

12 can be written as the product of 4 and 3.

It can be further simplified as,

  $\begin{array}{c}12\cdot \frac{1}{4}=\frac{12}{4}\\ =\frac{4\cdot 3}{4}\end{array}$

Striking off the common terms, we get,

  $12\cdot \frac{1}{4}=3$

Thus, Bobby ate 3 slices of pizza out of 12 slices.