Question

A school spent $150 on advertising for a breakfast fundraiser. Each plate of food was sold for $8.00 but cost the school $2.00 to prepare. After all expenses were paid, the school raised $2,400 at the fundraiser. Which equation can be used to find x, the number of plates that were sold?6x-150=2,4006x+150=2,40010x-150=2,40010x+150=2,400Which one is the awnser?

Answer 1

The equation will be written as the total money realised (raised ) = food + plate money ( x number of plates ) - the advertisement cost ( expenses )

The food money = $ 8 + $ 2 = $ 10 ( money for plate and food preparation )

The number of plate is represented by x ( since it is unknown )

The advertisement cost = $ 150

Total realised ( school gain ) = $ 2,400

Putting all together into the equation in the first paragraph, we have ...

10x - 150 = 2,400