1. In order to make 1 salad it requires 1 head of lettuce, two tomatoes and three carrots. What would be the coefficients for the lettuce, tomatoes, and carrots assuming you wanted to make 3 salads? Write the coefficients below!

3 salad = 3 lettuce + 6 tomatoes + 9 three carrots

Coefficients: 3, 6, 9

Explanation:

1 salad = 1 lettuce + 2 tomatoes + 3 three carrots

Multiply all the coefficients of 1 salad by 3:

3 (1 salad) = 3 (1 lettuce + 2 tomatoes + 3 three carrots)

Expand the equation:

3 salad = 3 lettuce + 6 tomatoes + 9 three carrots