Question

Carlos made a scale model of his house. The actual width is 30 feet, and the actual length is 45 feet. If the model has a width of 6 inches, what is the length of his his model?

Answer 1

Hello!

Let's make a proportion:


`(30)/(45) = (6)/(x)`

Cross multiply

45 × 6 = 270

Divide by 30

270 ÷ 30 = 9


`\framebox {The length is 9 inches}`