What is the length of the missing base of the trapezoid? 3 in 8 in Area= 21 in2
1 answer:
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Let's write some equations.
Mingwei's distance from Town A after
hours from 8:00 is 
.
Ali's distance from Town B after hours is 
, since he doesn't start walking for 40 minutes.
When Mingwei's distance is twice Ali's, they've met up (since their distance from Town A is twice their distance from Town B).
So, this gives
, so 
, so 
, so the time is 10:40.
After
hours, Mingwei has traveled 
kilometers while Ali has traveled sixty, so the distance between the towns is 
kilometers.
Mingwei's distance from Town A after
Ali's distance from Town B after
When Mingwei's distance is twice Ali's, they've met up (since their distance from Town A is twice their distance from Town B).
So, this gives
After
Answer and explanation:
a) How many milliseconds (ms) are in 1 second?
1 second = 1000 milliseconds
1 second = milliseconds
b) How many microseconds (μs) are in 1 second?
1 second = 1000000 microseconds
1 second = microseconds
c) How many nanoseconds (ns) are in 1 millisecond?
1 millisecond = 1000000 nanoseconds
1 millisecond = nanoseconds
d) How many microseconds are in 1 millisecond?
1 millisecond = 1000 microseconds
1 millisecond = microseconds
e) How many nanoseconds are in 1 microsecond?
1 microsecond = 1000 nanoseconds
1 microsecond = nanoseconds
f) How many kilobytes (KB) are in 1 gigabyte (GB)?
1 gigabyte = 1000000 kilobytes
1 gigabyte = kilobytes
g) How many kilobytes are in 1 megabyte (MB)?
1 megabyte = 1000 kilobytes
1 megabyte = kilobytes
h) How many megabytes are in 1 gigabyte?
1 gigabyte = 1000 megabytes
1 gigabyte = megabytes
i) How many bytes are in 20 megabytes?
1 megabytes = 1000000 bytes
20 megabytes = 20000000 bytes
20 megabytes = bytes
j) How many kilobytes are in 2 gigabytes?
1 megabyte = 1000 kilobytes
2 megabyte = 2000 kilobytes
2 megabyte = kilobytes