The answer is c. Because you subtract 5 from 15 because you are dividing (if you were multiplying you would addition)
Answer:
A is the correct answer.
Step-by-step explanation:
First do 6 times 6 and then do 36 times 3.14 to get 113.04.
Then do 4 times 4 to get 16 times 3.14 for 50.24
Last do 113 minus 50 for 63 squared.
Answer:
135 days
Step-by-step explanation:
Often, we measure work in man·days. This piece of work requires ...
(45 man)·(90 days) = 4050 man·days
When there are only 30 men, the number of days required can be found by dividing this work by the number of men:
4050 man·days/(30 man) = 135 days
_____
Another approach is to realize the time is inversely proportional to the number of men. If the number of men is 30/45 = 2/3 the original, then the time will be 3/2 the original, or ...
(3/2)·90 days = 135 days.
Answer:
option 1 and option 2 should be correct
Answer:
126 square meters
Step-by-step explanation:
7 x 6 x 3. You can regroup any pair of factors to make it easier on you.
I did (7 x 6) x 3 = 42 x 3 = 126
