Question

d'andrea's laptop download a 90 GB file in 15 seconds it takes Cheryl's laptop 80 Seconds to down the 30 to file whose laptop downloads files at a faster rate

Answer 1

To determine which laptop downloads the files at a faster rate, the first step is to determine the unit rate for each of them. This means, you have to determine the number of GB per second they download.

To calculate the GB per second, you have to divide the amount of GB downloaded by the time it took:

DeAndre's download

9 GB in 15 seconds

`\begin{gathered} \text{rate}=(9)/(15) \\ \text{rate}=\text{0}.6(GB)/(s) \end{gathered}`

The download rate is 0.6 GB/s

Cheryl's download

32GB in 80 seconds

`\begin{gathered} rate=(32)/(80) \\ \text{rate}=0.4(GB)/(s) \end{gathered}`

The download ate is 0.4 GB/s

DeAndre's laptop downloads at a faster rate.