translating algebra into equations.

Question

At the mail, soda costs $1.50 and refills are 75 cents.

How many refills can I have if I have $5.00.

Answer 1

After solving Mark's equation, you will get r = 4 2/3

So, the most refills you could get would be 4.

Answer 2

r represents the number of refills

5.00 = 1.50 + 0.75r

 

Can you solve for r and answer?