Question

a building is 60 feet (ft) tall. how many inches (in) is this?
first fill in the blank on the left side of the equation using one of the ratios. then write your answer on the right side of the equation.
ratios:
$\frac{36\text{ in}}{1\text{ yd}}$
$\frac{1\text{ yd}}{36\text{ in}}$
$\frac{12\text{ in}}{1\text{ ft}}$
$\frac{1\text{ ft}}{12\text{ in}}$
$\frac{1\text{ mi}}{1760\text{ yd}}$
$\frac{1760\text{ yd}}{1\text{ mi}}$
$\frac{60\text{ ft}}{1} \times \square = \square \text{ in}$

Explanation:

Step1: Select correct conversion ratio

We need to convert feet to inches, so use $\frac{12\ \text{in}}{1\ \text{ft}}$.

Step2: Set up unit conversion

Multiply the height by the ratio:
$60\ \text{ft} \times \frac{12\ \text{in}}{1\ \text{ft}}$

Step3: Calculate the result

Cancel the "ft" units and compute:
$60 \times 12\ \text{in} = 720\ \text{in}$

Answer:

The blank on the left is $\frac{12\ \text{in}}{1\ \text{ft}}$, and the final answer is 720 in.