Question

a video that you posted shows you preparing an order of nachos. you previewed the video on your rectangular phone screen, which measured 6 centimeters in length by 12 centimeters in width. although the video may be a different size on another device, the proportion of its width to height remains the same. a potential customer views the video on a tablet, which has a larger screen, and the video is displayed as 20 centimeters in length. what’s the width of the video on the tablet screen?

Explanation:

Step1: Find phone aspect ratio

The phone's length (height) is 6 cm, width is 12 cm. The ratio of width to length is $\frac{12}{6} = 2$.

Step2: Apply ratio to tablet length

Tablet video length is 20 cm. Let tablet width be $w$. Use the ratio $\frac{w}{20} = 2$.
Solve for $w$: $w = 20 \times 2 = 40$

Answer:

40 centimeters