Chapter 9, Problem 1RE

In Exercises 1-4, use dimensional analysis to convert the quantity to the indicated unit.

69 in. to ft

To determine

69 inches in feet.

Answer to Problem 1RE

Solution: $\text{5}\text{.75 ft}$

Explanation of Solution

Given: The units, 69 inches.

Explanation:

It is required to convert 69 inches to feet. There are 12 inches in one foot, feet should be placed in the numerator and the inches should be placed in thedenominator of the unit fractions as shown below:

$\frac{1\text{ ft}}{12\text{ in}\text{.}}$

Convert 69 inches into feet using the equation as follows:

$\begin{array}{c}\text{69 in}=\frac{\text{69 }\cancel{\text{in}.}}{1}\times \frac{1\text{ ft}}{12\cancel{\text{in}\text{.}}}\\ =\frac{69}{12}\text{ft}\\ =5.75\text{ ft}\end{array}$

Hence, the amount of 69 inches into feet comes out to be $5.75\text{ ft}$.