Question

savannah made a scale drawing of the block she lives on. she used a scale of 1 inch : 20 feet. the map is 7 inches long and 5 inches wide. what is the actual area of the block? square feet

Explanation:

Step1: Find actual length

Since the scale is 1 inch : 20 feet and the map - length is 7 inches, the actual length $l$ is $l = 7\times20=140$ feet.

Step2: Find actual width

Since the scale is 1 inch : 20 feet and the map - width is 5 inches, the actual width $w$ is $w = 5\times20 = 100$ feet.

Step3: Calculate actual area

The area of a rectangle is $A=l\times w$. Substituting $l = 140$ feet and $w = 100$ feet, we get $A=140\times100 = 14000$ square feet.

Answer:

14000