Question

A carpenter’s sketch of a room does not include a scale. She measures a wall that has been built and finds that it is 38.5 ft. long. On the blueprint this wall is 7 in. long. What is the scale for this blueprint?

Answer 1

Hello! The 7 inches on a blueprint represents the actual length of 38.5 feet. To find the scale on the blueprint, let's divide the actual length by the amount of inches on the blue print. 38.5 / 7 is 5.5. There. 1 in = 5.5 ft. 

Answer 2

Answer:

1 inch on blueprint = 66 inch of real height

Explanation:

Actual height of the wall is given as

$H = 38.5 ft$

so if we convert it into inch then we have

$H = 38.5 \times 12$

$H = 462 inch$

now we know that this is shown by height of 7 inch in blueprint

so we have

7 inch on blueprint = 462 inch real height

so 1 inch of blueprint will show

$h = \frac{462}{7} = 66 inch$

so here we can say that scale will be

1 inch on blueprint = 66 inch of real height