Answer: 12
<u>Step-by-step explanation:</u>
The LCM of 48 and 28 is 336
It would take 336 ÷ 28 = 12 revolutions of gear B
and 336 ÷ 48 = 7 revolutions of gear A
to match up the arrows.
Answer:
24 units by 15 units
Step-by-step explanation: To find how many units the length and width are, divide each by 5:
120/5 = 24
75/5= 15
For every 5 feet, there is 1 unit .
2 × n - 1 = x
Step-by-step explanation:
for example:
(treat as one element of )
The power set of is
1. is true because both and .
2. is true.
3. is true (same reason as part 1).
4. is false because does not contain the set , rather just the element itself.
5. is false because the element on its own simply is not in . That does not mean , but that belongs to a subset of .
6. is true.