Blaine buys 2 books and the total cost is $24.18 What is the constant of proportionality that
relates the cost in dollars y, to the number of books X?
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Respuesta :

Answer:

$12.09

Step-by-step explanation:

formula; Y= kx

where;    y = $24.18

               x = 2 books

               k = constant of proportionality

Step 1. Do the equation based on the data given

Y = kx

$24.18 = k2

Step 2. Compute the mathematical equation. Divide both sides by 2 to eliminate coefficient in the variable.

24.18 =k2

       2

k = $ 12.09 is the constant of proportionality cost in dlooars per book