Soda is on sale for $0.50 a can, and you have a coupon for $0.20 off your total purchase. write a function rule
for the cost of n sodas. how much would 10 sodas cost?

Step-by-step explanation:

Givens

Let's represents sodas with .

Notice that the coupon number must represents a negative number here, because it's a discount, it has to decrease the price.

Additionally, the coeficient of the variable must be 0.50, because that's the price per can, that is, the constant ratio of change.

So, the expression that models this situation is

So, for 10 sodas we have

Therefore, the price for 10 sodas is $4.80 including the coupon discount.

yep

step-by-step explanation: