Find multiples of 30 and 40:
30: 30, 60, 90, 120, 150
40: 40, 80, 120, 160
The least common multiple is 120, so every 120 minutes they willl both ring.
1 hour = 60 minutes:
120/60 = 2 hours.
The bells ring together every 2 hours.
8 + 2 = 10 am
10 + = 12pm
12 + 2 = 2 pm
The bells will ring together at am, 12 pm and 2 pm.
It is possible to have a triangle with those lengths
Answer:
The answer is 22
Step-by-step explanation:
Do Prime Factorization of 1260
(as shown in the picture I attached)
Prime factors of 1260 = 2, 2, 3, 3, 5, 7
Now to get the sum of the prime factors of 1260, you just have to add all the factors
2 + 2 + 3 + 3 + 5 + 7 = 22
Hope this helps!
12a−a
=12a−1a
=12a+−1a
=a+a+a+a+a+a+a+a+a+a+a+a+−a
=a+a+a+a+a+a+a+a+a+a+a
=11a