To determine the number of rows Mrs. Jones should plant, we need to find a number that evenly divides 30. This number represents the number of plants in each row. Here's the step-by-step process to calculate it:
1. Begin by listing the factors of 30. Factors are numbers that divide evenly into another number without leaving a remainder.
The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, and 30.
2. Since Mrs. Jones wants to plant the same number of plants in each row, we need to select a factor that evenly divides 30.
3. All the factors listed will divide 30, but we want the maximum number of plants in each row, so we need to choose the highest factor.
4. From the factors of 30, the highest factor is 15, which means Mrs. Jones should plant 15 tomatoes plants in each row.
Therefore, to divide her 30 tomato plants equally, Mrs. Jones should plant them in 15 rows, with 15 plants in each row.