Joyce uses 310 bag of chocolate chips for each batch of cookies she makes. What is the least number of batches Joyce can make if she has to open a second bag of chocolate chips? Enter your answer in the box.

Complete question :

Joyce uses 3/10 bag of chocolate chips for each batch of cookies she makes. What is the least number of batches Joyce can make if she has to open a second bag of chocolate chips? Enter your answer in the box.

4 batches

Step-by-step explanation:

Fraction of a bag of chocolate used per batch = 3/10 of a bag

Least number of batches that must be made if a second bag must be open :

Number of batches that can be made from the first bag :

1 bag / (3/10 of a bag)

1 / (3/10 * 1)

1 / (3/10)

1 ÷ (3/10)

1 * 10/3 = 10/3

= 3.333 batches

If another bag will be open, the it will be used to complete the incomplete batch. Hence, the least number of batches that can be made will be 4

the answer is 21%.