Dimensions 81779

The picture for the textbook was reduced to a ratio of 2:5.
What are the dimensions of the reduced image if the original dimensions were 20 cm and 15 cm?

Correct answer:

x =  8 cm
y =  6 cm

Step-by-step explanation:

$$\begin{gathered} r=2:5=0.4 \\ a=20\text{cm} \\ b=15\text{cm} \\ x=r\cdot a=0.4\cdot 20=8\text{cm} \end{gathered}$$

$y=r\cdot b=0.4\cdot 15=6\text{cm}$

Try another example