Answer:
6 salads
Explanation:
There is 1/2 a cup of tomatoes in each salad Preston makes. He wants to make salads with 3 cups, so set up a proportion:
, where x is the number of salads he can make
Cross-multiply:
(1/2) * x = 3
x = 3 ÷ (1/2) = 6
He can make 6 salads.