Answer: Approximately 4 hours and 27 minutes.
Explanation: Let Officer Kay's hours be represented by 1/8
and Officer Ming's hours be represented by 1/10.
That means that Officer Kay completes 1/8 of the job in 1 hour and Officer Ming completes 1/10 of the job in 1 hour.
If they work together,
It would be 1/8 + 1/10 =
Finding the LCM of the denominator, which is 80,
Addition of 1/8 and 1/10 is 9/40.
Let T be the amount of time it takes the two of them to finish the job,
then 9/40 of the job x T (expressed in hours) has to equal 1 job.
So, (9/40) x T = 1,
therefore T = 40/9 = 4.444 or 4 and 4/9.
Converting 4.444 to hours and minutes, we have 4 hours 27 minutes.
This means it would take 4 and 4/9 hours (about 4 hours and 27 minutes) for Officers Kay and Ming to complete the task together.
Answer:
OD) Map became more accurate as new lands were found.
Explanation:
The travels impacted maps because the maps didn't know America so they kept adding more things.
Answer:
When war between Britain and France ended in 1815, so did British interference with American shipping. The most notable result of the War of 1812 was an upsurge in American nationalism. ... The war also produced a new national symbol, The Star-Spangled Banner, which Congress made our national anthem in 1931.
Explanation:
Answer: The theory that the Americas were populated by humans crossing from Siberia to Alaska across a land bridge was first proposed as far back as 1590, and has been generally accepted since the 1930s.
Explanation:
Answer:
The 1991 Gulf War was the strangest war in Israel's war-scarred history. ... It was necessary to keep Israel out in order to keep the Arabs in the American-led anti-Saddam coalition.
Explanation:
