Question

1) Lesson 9 Practice Problems An image of a book shown on a website is 1.5 inches wide and 3 inches tall on a computer monitor. The actual book is 9 inches wide. a. What scale is being used for the image? b. How tall is the actual book? Show your work.

Answer 1

We have:

Image of book on website

Wide = 1.5 inches

Tall = 3 inches

Actual book

Wide = 9 inches

Tall = ?

a) Scale used for the image:

`\frac{wide\text{ actual book}}{wide\text{ image book}}=(9)/(1.5)=6`

Answer: scale = 6 inches

b) Tall actual book

`\text{tall image book }* scale=3*6=18`

Answer: tall = 18 inches