Siare 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 x be the number of batches Siare made.
The total number of biscuits from the batches is 75x.
Siare's friend brought her another 60 biscuits, so the total number of biscuits is 75x + 60.
Since the total number of biscuits is 360, this means 75x + 60 = 360.
Subtracting 60 from both sides, the equation becomes 75x = 300.
Dividing both sides by 75 gives x = 4.
Siare made 4 batches. Answer: \boxed{4}.