At the movies, you order 3 boxes of popcorn and a bottle of water. The cost of a bottle of water is $1.75. Your total cost is $9.25. Write and solve an equation to find the cost of one box of popcorn.

Answer 1

Alright, so first thing you need to do on this problem is come up with a variable for what your solving for (cost of a box of popcorn):

b- cost of a box of popcorn

so the things you know are you have 3 boxes of popcorn (3b), one bottle of water (+1.75) and the total cost (=9.25), so your equation would be:

3b + 1.75 = 9.25

Then from there you will just solve the equation and that will give you the cost of a box of popcorn. Hope this helped!