Respuesta :
Answer:
1.29 a yard
Step-by-step explanation:
there are 3 feet in each yard so 9 divide by 3 would be 3 yards
then you take 3.87 and divided it by 3 you get 1.29 per yard
if you want to check then you just multiply 1.29 times 3 = 3.87
The price per 1 yard of the aluminum foil as per linear equation is 1.29.
What is a linear equation?
A linear equation is an equation where the variable or variables has the highest degree of 1.
Given, 9 feet roll of aluminum foil costs 3.87.
We know, 3 feet equals to 1 yard.
Therefore, 9 feet equals to [tex]\frac{9}{3}[/tex] yard = 3 yard.
Now, 3 yard roll of aluminum foil costs 3.87.
Therefore, price per yard of the aluminum foil is [tex]\frac{3.87}{3} = 1.29[/tex].
Learn more about a linear equation here: https://brainly.com/question/14455279
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