Question

Michael, Trina, and Vanessa work together to mow lawns in their neighborhood. Michael mowed 8 lawns in 3 days, Trina mowed 5 lawns in 2 days, and Vanessa mowed 9 lawns in 4 days. Find the unit rate in lawns per day for each person and place the unit rates in order from least to greatest.

Answer 1

Unit rate if Michael is $\frac{8}{3}$ lawns in 1 day

Unit rate of Trina is $\frac{5}{2}$ lawn in 1 day

Unit rate of Vanessa is $\frac{9}{4}$ lawns in 1 day

Order from least to greatest = 2.25, 2.5, 2.667

Solution:

Michael mowed 8 lawns in 3 days

Here, unit rate is lawns moved in 1 day

$\text{Lawn moved in 1 day } = \frac{8}{3} = 2.667$

Trina mowed 5 lawns in 2 days

$\text{Lawn moved in 1 day } = \frac{5}{2} = 2.5$

Vanessa mowed 9 lawns in 4 days

$\text{Lawn moved in 1 day } = \frac{9}{4} = 2.25$

Order from least to greatest

2.25, 2.5, 2.667

Which means,

least to greatest = Vanessa , Trina, Michael