Question

Lea walked 1/2 miles in 1/3 hours.

Answer 1

Takes her 20 minutes to walk 1/2 a mile
2 miles=80 minutes  
1/4= 10 minutes i think 
so 80+10=1 1/2

Answer 2

Answer:

Unit rate defined as the rates are expressed as the quantity as 1 such as 2 miles per hour or 3 meters per second.

Given the statement: Lea walked 1/2 miles in 1/3 hours

$\text{Unit rate per miles} = \frac{\text{Number of hours}}{\text{Number of miles}}$

Substitute the given values we get;

$\text{Unit rate per miles} = \frac{\frac{1}{3}}{\frac{1}{2}}$

Simplify:

$\text{Unit rate per miles}=\frac{2}{3}$

Now, find the number of hours it take Lea to walk $2\frac{1}{4}$ miles.

Number of miles = $2\frac{1}{4}=\frac{9}{2}$

By definition of unit rates;

$\text{Number of hours}= \text{Unit rate per miles}\times \text{Number of miles}$

Substitute the values we get;

$\text{Number of hours} = \frac{2}{3} \times \frac{9}{4} = \frac{3}{2} = 1\frac{1}{2}$

therefore, $1\frac{1}{2}$ hours it will take Lea to walk $2\frac{1}{4}$ miles.