Question

Emery earns money mowing his neighbors' lawns. He charges $1.25 per square yard for each lawn he mows. His neighbors, the Flores Family, hires Emery to mow their rectangular lawn. Emery records the dimensions of their lawn and calculates that he will charge them $21. The width of the Flores' rectangular lawn is 4 yards. What is the length, in yards, of the Flores' lawn?

Answer 1

Answer: 4.2 yards

Step-by-step explanation:

Let x = length of the Flores' lawn in yards.

Then, Area of lawn = 4x  sq. yard [Area of rectangle = width x length , here width = 4 yds (given)]

Charge per square yard = $1.25

Charge for Flores lawn = 1.25 × (Area of lawn)

= 1.25 (4x)

= 5x

As per given,

$5x=21\\\\\Rightarrow\ x=\dfrac{21}{5}\\\\\Rightarrow\ x=4.2$

Hence, the length of the Flores's lawn = 4.2 yards