the formula for the size of a file that was downloaded over time t and at an average rate r is r · t. siena…

the formula for the size of a file that was downloaded over time t and at an average rate r is r · t. siena downloaded a file at a rate of 800 kilobytes per second for about 110 seconds. what calculation will give us the estimated size of the file siena downloaded, in megabytes? choose 1 answer: a 800 · 110 · 60 b 800 · 110/60 c 800 · 1000 · 110 d 800/1000 · 110

the formula for the size of a file that was downloaded over time t and at an average rate r is r · t. siena downloaded a file at a rate of 800 kilobytes per second for about 110 seconds. what calculation will give us the estimated size of the file siena downloaded, in megabytes? choose 1 answer: a 800 · 110 · 60 b 800 · 110/60 c 800 · 1000 · 110 d 800/1000 · 110

Answer

Explanation:

Step1: Recall the file - size formula

The size of a file $S$ is given by $S = r\times t$, where $r$ is the rate and $t$ is the time. Here, $r = 800$ kilobytes per second and $t=110$ seconds. So the size in kilobytes is $S_{k}=800\times110$ kilobytes.

Step2: Convert kilobytes to megabytes

Since $1$ megabyte = $1000$ kilobytes, to convert the size from kilobytes to megabytes, we divide the size in kilobytes by $1000$. So the size in megabytes $S_{m}=\frac{800\times110}{1000}=\frac{800}{1000}\times110$.

Answer:

D. $\frac{800}{1000}\cdot110$