In a 3 to 1 slope, how many inches per foot will the bank rise?

In a 3 to 1 slope, the term indicates that for every 3 units of horizontal distance, the slope rises 1 unit vertically. To understand this in terms of inches per foot, consider that 1 foot equals 12 inches.

In a 3 to 1 slope, for every 3 inches of horizontal movement, there is a 1 inch rise. If we scale this to a full 12 inches (1 foot), we can determine how many inches the bank will rise. Since 12 inches corresponds to 3 sets of 3 inches (as 3 inches x 4 = 12 inches), that means the rise would be 1 inch for each of those sets of 3 inches.

Thus, for the 12-inch horizontal distance, the total rise would be 4 inches (1 inch for each of the 3-inch sections, multiplied by 4). So, the bank rises 4 inches for every foot of horizontal distance.

This relationship establishes that the correct answer is indeed 4 inches per foot rise as described by the 3 to 1 slope.