Answer:
Step-by-step explanation:
If a watch has fewer than three defects, then either 1.) It has no defects, 2.) it has exactly 1 defect, or 3.) it has exactly 2 defects.
1.) The probability that the watch has no defects is 
, because for every chime there is a probability of 
that there is no defect
2.) The probability that the watch has exactly 1 defect is 
times the number of ways you can choose 1 of 75 of the chimes to be defective, which is 
, so the probability that the watch has exactly 1 defect is 
.
3.) For the same reason as 2.), the probability that the watch has exactly two defects is 
Since 1.), 2.), and 3.) are mutually exclusive events, the probability of their union is simply the probability of each of them added together, which is
Answer:
a
Step-by-step explanation:
to find a proportion they must equal each other
8/4 in its simplest form is just 2
to make r/3 = 2 r must be 6
6/3 is 2
Answer:
d = 25
Step-by-step explanation:
The value of d has to satisfy the inequality
so replace d with one of the given options
We have to simplify the fraction first
All of the statements are right or proper so D is right
Answer:
<u>=14/15</u>
Step-by-step explanation:
distributive property: a(b+c)=ab+ac
product it's must be multiply the numbers, fractions, factors, and multiples.
3/5*14/9
you can also cross out the common factor of 3.
1/5*14/3
multiply the fractions.
1*14/5*3
1*14=14
14/5*3
5*3=15
<u>=14/15</u>
Hope this helps!
Thanks!
