Question

caked inc charges $30 per cake sold plus $3 for every extra detail added.Pretty cakes charges $25 dollars per cake sold plus $4 per every extra detail added.For how many extra details added will the cost of both cakes be the same for both companies?

Answer 1

We can propose an equation to solve the question, and it is the following:

`30+3\cdot x=25+4\cdot x`

solving for x:

`\begin{gathered} 4\cdot x-3\cdot x=30-25 \\ x=5 \end{gathered}`

which means that the 5 extra details equals the cost