Question

Find the actual width of a building if the model of the building is 7 cm wide by 58.7 cm long and the actual length of the building is 140.9

Answer 1

16.8

Explanation:

Set up a proportion.

w = width and l = length

I would put the length and the width of the model in the first fraction and the length of the actual building on the right.

`(w)/(l)` =
`(w)/(l)`

`(7)/(58.7)` =
`(w)/(140.9)` Multiply both sides of the equation by 58.7 and 140.9 and you get:

140.9(7) = 58.7x

986.3 = 58.7x Divide both sides by 58.7

16.8023850085 = x I will round to the nearest tenths' place

16.8