Question

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

Answer 1

can some one help me plz i really need help on this?

Answer 2

Proportions!
\[\frac{11cm} {x cm} wide= \frac{15 cm}{30 cm}long\]

Solve for x.
\[\frac{11}{x} = \frac{1}{2}\]
Multiply both sides by x\[11=\frac{x}{2}\]
Multiply both sides by 2.
\[22 = x\]
Therefore the image will be 22 cm wide.

Answer 3

thanks

Answer 4

\(\begin{array}{llll}
width&length\\
\hline\\
11&15\\
x&30
\end{array}\implies \cfrac{11}{x}=\cfrac{15}{30}\)