Question

You are baking brownies for your class. There are 28 total students in your class and you have baked 23 brownies. Right and solve an equation to find the additional number x of Brownies you need to bake in order to have two brownies for each student. Write your equation so that the units on each side of the equation are brownies per student.

Answer 1

`x = 33`

Explanation:

Given

`Students = 28`

`Brownies = 23`

`Brownies = 2\ per\ student`

Required

Determine the number of brownies left

If:

`Brownies = 2\ per\ student`

and there are 28 students

Then:

`Total\ Brownies = 2 * 28`

`Total\ Brownies = 56`

To determine the number of brownies left, we have:

`Total\ Brownies = Brownies\ Made + Brownies\ Left`

`56 = 23 + x`

Reorder

`x + 23 = 56`

Collect Like Terms

`x = 56 - 23`

`x = 33`

Hence, there are 33 brownies left