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Sagot :
Answer is D because he charge 10 $ mowing free +3 per square yard of lawn
lawn has dimensions:
x and y
Area= x*y=xy squar yard
so charge is
10 +3*Area=10+3xy
lawn has dimensions:
x and y
Area= x*y=xy squar yard
so charge is
10 +3*Area=10+3xy
Answer:
Option D is correct.
Charge for the mowing = 10 + 3xy
Step-by-step explanation:
here, x represents the length of the lawn and y represents the width of the lawn.
[tex]\text{Area of lawn} = \text{length} \times \text{width}[/tex] = xy square yard
Perimeter of lawn = 2 (x+y) = 2x + 2y yard
As per the statement:
Devin has started a lawn care service. He will charge a mowing fee of $10 plus $3 per square yard of lawn.
then;
Charge for mowing = [tex]10 + 3 \cdot \text{Area of lawn}[/tex]
= 10 + 3xy
Also, he offers trimming service at $8 plus $1 per yard of the perimeter.
⇒ Trimming service =[tex]8 + 1 \cdot \text{Perimeter}[/tex] = 8 + (2x +2y)
Therefore, from the expression: 10 + 3xy +8 + (2x+2y)
10 + 3xy represents the charge for the mowing.
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