A blueprint for a house has a scale of 1:30. A in the blueprint is 3 in. What is the length of the actual wall in feet. (1 point) Responses 7.5 ft 7.5 ft 8.75 ft 8.75 ft 105 ft 105 ft 90 ft.wall

The length of the actual wall is 8.75 ft.

To calculate this, you first convert the scale to real-life dimensions by multiplying the length on the blueprint (3 in) by the scale factor (30).

3 in x 30 = 90 in

Next, convert the length from inches to feet by dividing by 12:

90 in ÷ 12 = 7.5 ft

Therefore, the length of the actual wall is 7.5 ft.