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.(1

1 answer

Let x be the number of batches Siara made.
The total number of biscuits from the batches is 75x.
After her friend gives her more biscuits, the total number of biscuits is 75x + 60.
We know that the total number of biscuits is 360.
So, 75x + 60 = 360.
Subtracting 60 from both sides of the equation, we get 75x = 300.
Dividing both sides by 75, we get x = 4.
Therefore, Siara made 4 batches of biscuits. Answer: \boxed{4}.