Writting 5

Dior Lowhorn
February 24, 2008
1. Convert the following numbers from base 2 to base 10.
1. 1011
2. 101010
3. 11111
4. 10010
2. Convert the following numbers from base 10 to base 2.
1. 31
2. 51
3. 7
4. 103
3. Suppose that we want to download a 100 MB file. How long will it take on each of the following connections?
1. A modem that can download at 56 kilobits/second
2. A DSL connection that can download at 5 Megabits/second
3. A high-speed connection that can download 10 Megabits/second
4. If we have an Internet connection that can upload 3 Megabits/second, and an MP3 is 60 Megabytes, how many MP3s can we upload in an hour?



1.A) 11
B) 42
C) 31
D) 18

2.A) 11111
B) 110011
C) 111
D) 1100111

3. A)
B)
C)

4. 0.375 MB/sec = 2.66 sec/MB
2.66 x 60 = 159.6 seconds = 2.66 minutes per song

60/2.66= 22 22 Songs in one hour