It helps because seeing a number broken up helps your brain undertsand more clearly as to what exactly you are multiplying.
We have that
n----------> number of cities
the probability that the tourist will visit the cities in alphabetical order is (1/n<span>!)
P=</span>(1/n!)
n!-------------> (7*6*5*4*3*2*1)=5040
therefore
1/5040=0.000198-----------> (five decimal places)--------> 0.00020 (0.020%)
the answer is 0.00020 (0.020%)
(2.3*10^-3) / (4.6*10^-7)
(2.3*0.001) / (4.6*0.0000001) *10^-3=0.001 & 10^-7=0.0000001*
(0.0023) / (0.00000046) *2.3*0.001=0.0023 & 4.6*0.0000001=0.00000046*
5000 *0.0023/0.00000046*
So the answer is 5000
I think she would have to divide 2/3 by 1/2. So you would do 2/3 x 2/1 and since 2/1 is equal to 2 the answer would be B
Hope this helped - Ashlynn
Answer:
1
Step-by-step explanation:
1+1 wshydvdygdhdurhueueuyehehejidud
