Joyce should have to make the 4th batch of cookies at least, to open the second bag.
Given information:
Joyce uses 3/10 bags of chocolate chips for each batch of cookies she makes.
She wants to open the second bag.
Now, each batch requires 3/10 bag of cookies. So, the number of batches that can be completed by one bag of chocolate chips will be calculated as,
[tex]\dfrac{1}{3/10}=\dfrac{10}{3}\\=3.33[/tex]
So, 1 bag of chocolate chips will complete 3.33 batches.
Therefore, Joyce should have to make the 4th batch, at least, to open the second bag.
For more details, refer to the link:
https://brainly.com/question/22200822
