Final answer:
To calculate the clay content in the mixture, one would typically use the weighted average formula. As the percentage of clay in the first soil is unknown, an exact answer cannot be provided without this information.
Step-by-step explanation:
To determine the clay content in the mixture of two different soils, we can use the concept of weighted averages. The student mixed 11 oz of soil containing an unknown percentage of golo clay with 12 oz of soil with 15% clay. However, the amount of golo clay in the first soil is not provided, so let's assume it's represented as 'x' percent.
The total weight of the mixture is 11 oz + 12 oz = 23 oz. To find the overall percentage of clay, we can write the equation:
(11 oz * x% + 12 oz * 15%) / 23 oz = overall clay percentage
Without the value for 'x', we cannot calculate the exact clay content in the mixture. But once the percentage of golo clay in the first soil is known, the equation can be used to find the overall clay content by substituting 'x' with the given percentage.