Siara is baking biscuits for a bake sale. Each batch makes 75 biscuits, and her friend gives her another 60 biscuits. She ends up with 360 biscuits total for the bake sale. Use algebra to solve for how many batches she made.

Answer 1

Let's assume Siara made x batches of biscuits.
The total number of biscuits from the batches is 75x.
Her friend gave her an additional 60 biscuits.
So, the total number of biscuits she has is 75x + 60.
Given that the total number of biscuits is 360, we can set up the equation:
75x + 60 = 360.
Subtracting 60 from both sides of the equation, we get 75x = 300.
Finally, dividing both sides by 75, we find that x = 4.
Therefore, Siara made 4 batches of biscuits. Answer: \boxed{4}.