Answer:
130/100 = 13/10
Step-by-step explanation:
P(A or B)= 1 + 30/100 = 100+30/100 = 130/100
the expression is simplifying to 11+2x
.28 or 28% chance the randomly selected student is a senior. There are 50 total students in the band, and 14 seniors, so the probability that a senior is randomly selected is 14/50 or .28
Divide 0.03 by 10.
This will give you 0.003 which is your answer.
To check, just multiply 0.003 by ten and you'll see that 0.03 is 10x more than it.
