Question

A cookie delivery company charges $0.90 per cookie plus a $3 delivery fee. If an

order costs $11.10, how many cookies were ordered?

Answer 1

9 cookies

Explanation:

The equation is 11.1 = 0.9x + 3. First, we need to isolate the variable so we subtract 3 from both sides. 8.1 = 0.9x. Next we divide both sides by 0.9 which gives us 9 = x or x = 9.