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kykrilka [37]
3 years ago
14

Ellen is downloading a file. After 2 minutes, there are 38.4 megabytes left to download. After 8 minutes, there is only 9.6 mega

bytes left to download. What is the size, in megabytes, of the file.?
Mathematics
2 answers:
atroni [7]3 years ago
7 0
Find the average download rate.
(38.4 - 9.6) / (2-8) = -4.8 mb/min

that means in the first 2 min she had downloaded 2(4.8)  = 9.6 mb

38.4 mb left + 9.6 mb already downloaded = 48 mb total
 

Oksana_A [137]3 years ago
3 0

Answer:

The size of the file is of 48 megabytes.

Step-by-step explanation:

8-2 = 6 minutes

38.4 - 9.6 = 28.8 megabytes

As we can see, 28.8 megabytes were downloaded in 6 minutes. Assuming a constanct and non stopped download speed, we can affirm that 4.8 megabytes were download per minute (28.8 / 6 = 4.8). As after 2 minutes, there were 38.4 megabytes left, in order to know the size of the file we have to do the following calculation:

38.4 + (4.8 x 2) = Size of the file

38.4 + 9.6 = 48 megabytes

The size of the file is of 48 megabytes.

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