.
in Grade (4th 9 weeks Spring 2020)
Using a Verbal Description to Find the Constant of Proportionality
Discount Comics is running a special: 20 comics for $5.00. Seth purchases 30 comics for $7.50. What is the sale
price per comic?
per comic?
What is the constant of proportionality?

Constant of Proportionality and sale  price per comic is 0.25 each .

Step-by-step explanation:

Here we have , Discount Comics is running a special: 20 comics for $5.00. Seth purchases 30 comics for $7.50. We need to find What is the sale

price per comic . Also , What is the constant of proportionality . Let's find out:

20 comics for $5.00 , So , Sale price per comic is :

⇒

⇒

⇒

⇒

So , the sale  price per comic is 0.25 . Now ,

Let Number of comics be x , and cost be y so ,

⇒ where k is constant of proportionality

⇒

⇒

⇒

Therefore , Constant of Proportionality and sale  price per comic is 0.25 each .