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

Let's say Siara made x batches of biscuits.

The number of biscuits she made in her batches is 75x.
Her friend gave her 60 biscuits, so the total number of biscuits Siara had is 75x + 60.
This total is 360 biscuits, so 75x + 60 = 360.
Subtracting 60 from both sides of the equation, we get 75x = 300.
Dividing both sides by 75, we find that x = 4.
Therefore, Siara made 4 batches of biscuits. Answer: \boxed{4}.

Let's assume the number of batches Siara made is represented by the variable "x".

Given that each batch makes 75 biscuits, the total number of biscuits from the batches would be 75x.

And her friend gives her another 60 biscuits, so the total number of biscuits becomes 75x + 60.

According to the given information, Siara ends up with 360 biscuits.

Therefore, we can set up the equation:

75x + 60 = 360

To solve for x, we can subtract 60 from both sides of the equation:

75x = 360 - 60
75x = 300

Finally, we divide both sides of the equation by 75:

x = 300 / 75
x = 4

Hence, Siara made 4 batches of biscuits for the bake sale.

To solve for the number of batches Siara made, we can set up an equation using algebra.

Let's suppose the number of batches Siara made is b.

Since each batch makes 75 biscuits, the number of biscuits from the batches can be represented as 75b.

Her friend gives her an additional 60 biscuits, so the total number of biscuits is 75b + 60.

According to the problem, Siara ends up with a total of 360 biscuits for the bake sale. So we can set up the equation:

75b + 60 = 360

To isolate the variable, we can subtract 60 from both sides of the equation:

75b = 300

Finally, dividing both sides of the equation by 75:

b = 4

Therefore, Siara made 4 batches of biscuits for the bake sale.