Question

Mona needs to photcopy an 11 cm wide 15 cm from a book for her report. She wants to enlage the picture so that its length will be 30cm. How wide will the enlage picture be?

Answer 1

11/15=x/30
Use cross multiplication to find x.

Answer 2

You can set up a proportion, but just by looking at mathmate's drawing, look at how the length changes from the original to the copy. Make the width change the same way.

Answer 3

My bad, thought that link had a proper answer.

Answer 4

It would be 22

Answer 5

By simply setting up a ratio

Answer 6

Yep!

Answer 7

Set up a proportion.\[\frac{30}{15}=\frac{x}{11} \implies x=22\]