Chapter 6, Problem 8QC

To determine

To fill: The blank in the statement “ $3\text{ft}=\boxed{}\text{ in}$ ”.

Answer to Problem 8QC

The complete statement is $3\text{ft}=\boxed{36}\text{ in}$ .

Explanation of Solution

Given information:

The statement “ $3\text{ft}=\boxed{}\text{ in}$ .”

Consider the provided statement “ $3\text{ft}=\boxed{}\text{ in}$ .”

Recall that the conversion rule that 1 foot is 12 inches.

So, 3 feet is evaluated as when 3 is multiplied by 12.

Therefore, 3 feet is,

  $\begin{array}{c}1\text{ft}=12\text{ in}\\ 3\text{ft}=\left(12\times 3\right)\text{ in}\\ 3\text{ft}=36\text{ in}\end{array}$

Thus, the complete statement is “ $3\text{ft}=\boxed{36}\text{ in}$ .”