A chef uses a recipe with these ingredients. The chef decides to make more than 1 batch of the recipe. A 2-column table with 4 rows. Column 1 is labeled Vegetable with entries onions, celery, garlic, carrots. Column 2 is labeled Cups Used with entries 2, 1, 1, 3. If a total of 20 cups of onions and carrots were used, how many batches did the chef make