Answer: A) 30 cards
<u>Step-by-step explanation:</u>
1. 52 cards
2. subtract red suit cards: 52 - 26 = 26
3. add back the hearts: 26 + 13 = 39
4. remove the 3 remaining jacks, 3 remaining queens, & 3 remaining kings: 39 - 9 = 30
There are 30 cards remaining
Answer:
Yes because the 1st and 3rd one are functions
Step-by-step explanation:
0.3(4x-8)-0.5(2.4x+4)
1.2x-2.4-1.2x+2
x-0.4
If you assume doubling the workers will halve the time taken to finish then 12 analysts will take 21 days
To finish in 7 days (1/6 of 42 days) you would need 6 x the original number = 36 analysts.
Brook’s Law (see Wikipedia) suggests than adding extra analysts will actually slow the project down!
One reason is the extra people tend to get in each others way.