Answer:
Both buses will arrive at the stop at 6:52 AM
Step-by-step explanation:
Wilkenson Bus = Arrives every 21 minutes
Harris Road Bus = Arrives every 15 minutes
Let's find the Least Common Multiple (LCM) of 21 and 15. LCM is found, listing the prime factors of each numbers and then multiplying each factor the greatest number of times it occurs in either numbers:
LCM 21 = 3 × 7
LCM 15 = 3 × 5
LCM (21 , 15) = 3 × 7 × 5 = 105
In 105 minutes both buses will arrive at the same time again
105 minutes = 1 h 45 min
5:07 AM + 1h 45 min = 6:52 AM
If you were to multiply 8 into 30 you'd get it.
3 |b-12| =|15|3b+36=15
b+36=5
b=-31 is your answer
Do not click on that oh and I think the answer is a
Answer:
24 ways
Step-by-step explanation:
By the Fundamental Counting Principle,
Number of permutations = 4 ⋅ 3 ⋅ 2 ⋅ 1
= 4!
= 24
There are 24 different ways the teacher can order the student presentations.