Question

Sandra drew a scale drawing of a house and its lot. She used the scale 1 inch : 3 feet. If the backyard deck is 10 inches wide in the drawing, how wide is the actual deck? feet

Answer 1

30 ft

Explanation:

The given scale can be multiplied by a suitable factor to make the corrsponding measurement match known values:

1 in : 3 ft = (drawing measure) : (actual measure)

Multiplying by 10 makes the drawing measure match the given value:

10 in : 30 ft = (drawing width) : (actual width)

The actual deck is 30 ft wide.